Arrow's season 7 premiere had Oliver Queen in prison, a new Green Arrow, and left a lot of questions. Of all the shows making up the Arrowverse, it would be fair to say that Arrow made the most drastic changes to its status quo last year. The sixth season finale saw Oliver Queen exposing his secret identity as the vigilante Green Arrow to the world and pleading guilty to numerous federal charges after a year-long FBI investigation. He did this as part of a plea deal to buy immunity from prosecution under Star City's new anti-vigilante laws for the rest of Team Arrow and to secure the FBI's help in going after Ricardo Diaz - a crime boss who had already blackmailed his way into taking control of Star City's police department, District Attorney's office, and most of its city council.

The victory was a half-hearted one, even ignoring the sacrifices Oliver Queen had to make to bring it about. While Diaz's network was shut down and the corrupt officials working for him were arrested, Diaz himself was able to evade capture. Unfortunately, before he lost his wealth and power, Diaz was able to secure the employment of The Longbow Hunters - a legendary team of assassins, who will join with Diaz to destroy everything Oliver Queen has left to lose.

Related: Arrow Season 7 New Cast, Character & Guest Star Guide

Five months later, Arrow's season 7 premiere shows how Oliver has started a new life for himself in prison and how the rest of Team Arrow and Star City are coping in the wake of last year's explosive season finale. Yet still we have numerous questions about what has happened in the past five months. And where do we go from here?

9. When And How Will Oliver Get Out Of The Slab?

It's only a matter of time before Oliver Queen gets out of prison. Though Stephen Amell shot-down a rumor that Oliver Queen would be out of prison after three episodes of Arrow season 7, we logically know that he has to be free in time for the Elseworlds crossover event with Supergirl and The Flash. This begs the question - will Team Arrow arrange a prison break to get their leader out, despite his wishes to honor his bargain with the FBI?  Or will Ollie's plan to earn time-off with good behavior work better than expected, earning him a full pardon from a sympathetic politician who likes Green Arrow's style and doesn't want to see him in prison?

8. How Did Black Siren Become The New DA of Star City?

Arrow Season 7 Black Siren Katie Cassidy Pretending To Be Laurel Lance District Attorney

Black Siren is still continuing to pretend to be the Laurel Lance of Earth 1 in the Arrow season 7 premiere and that extended bluff has now led to her becoming the District Attorney of Star City. There's quite a lot wrong with this scenario, even ignoring that - logically - she should be the last person allowed into a position of power in the new Star City. Given how anti-vigilante the city government is in the wake of Oliver Queen being exposed as Green Arrow, why would they appoint a former associate of Queen's who is also a known vigilante (the real Laurel Lance was revealed as Black Canary after her death in Season 4) to an important position like District Attorney?

Apart from that, there is also the question of how Black Siren can possibly impersonate a lawyer. Quentin Lance's gift of his daughter's old textbooks back in Season 6, while a nice gesture, is nowhere near enough to start a comprehensive crash-course in earning a law degree, much less running the District Attorney's office of a large city. It doesn't help matters that Laurel was trained in family law rather than criminal law and she had very little experience as a prosecutor before her death.

Related: Arrow Season 6 Finale Theory: Is [SPOILER] Working With Diaz?

7. What Is Brick's Side-Hustle?

Arrow Season 7 Stephen Amell Oliver Queen Vinnie Jones Danny Brickwell Brick

It is revealed that Danny "Brick" Brickman, Ben "Bronze Tiger" Turner and Derek Sampson had formed some sort of alliance after being imprisoned together and had a three-man "side-hustle." With Turner thrown into solitary confinement after his failed attempt to stab Oliver Queen to death in the cafeteria, this left them one man down. Brick tried to recruit Oliver, but the former Green Arrow was decidedly uninterested in doing anything that might get him into trouble. This begs the question - just what is this side-hustle?

6. How Did Diaz Escape from ARGUS After Attacking Felicity?

Ricardo Diaz holds a vial in Arrow

From the Arrow season 7 premiere, it's unclear just how Diaz managed to escape being captured by ARGUS after he attacks Felicity in the ARGUS safe-house where she is living with William.  When we last see Diaz in the episode, he is standing over Felicity with a knife and promising to make her suffer. When we next see Felicity, she is visiting Oliver in prison and telling him that she'd be dead if ARGUS hadn't gotten there when they did. The entire fight scene and Diaz's apparent escape all take place off-camera, proving Joel Hodgson's old truism that "anything can happen during the cut-away."

The obvious answer is Diaz still has someone at ARGUS, The FBI or some other source feeding him information. There were fan theories during season 6 that Samandra Watson - the FBI Agent with a mad-on for Oliver Queen - may have been in Diaz's employ.  Given that she's apparently made no progress in finding Diaz after five months of hunting for him, it's entirely possible this theory may be proven true. Or is the culprit a certain seemingly reformed lawyer?

Page 2: 5 More Big Questions About the Arrow Season 7 Premiere

5. How Did Diaz Track Down Felicity In The First Place?

By the same token, no explanation is given by the Arrow premiere for just how Diaz was able to track down and infiltrate the ARGUS safe-house or how he evaded the security team that we were told was watching William and Felicity at all times. Diaz even manages to enter the house without triggering the alarms until he wants his presence to be known. Given that Diaz's criminal empire and contacts have been exposed to the world, he shouldn't have the connections or resources need to pull-off a run-around on an organization like ARGUS. This should be even more impossible with John Diggle personally overseeing the security arrangements around Felicity and William, unless Diaz has an agent on the inside.

Related: What Elseworlds Means For The Arrowverse & Batwoman

4. Is Felicity's New Favorite Customer Working With Diaz?

Arrow Season 7 Felicity Smoak and Favorite Customer

One oddity in the Arrow season 7 premiere was that Felicity was approached twice in her new job as a barista by a customer who was having trouble with the code on an app he was working on. In their first encounter, Felicity solved the problem in seconds. The second time the customer appeared, he thanked her for her help and asked her out. Is it possible this overly-friendly customer was a spotter for Diaz, helping him to track down Felicity Smoak as part of his plan for revenge?

3. Who Is The New Green Arrow?

Arrow Season 7 Mystery Green Arrow

Who is the new Green Arrow running around Star City? Black Siren says it definitely isn't Oliver Queen, but nothing is impossible when you have one group of friends with a time machine and another one who is the Fastest Man Alive. It's entirely possible, however unlikely, that Oliver Queen could still be finding a way to save his city while still serving his sentence.

A more plausible scenario is that it's John Diggle, whom Oliver had asked to take over the role last year and who has impersonated Green Arrow more than once in the past. It's worth mentioning that Oliver did leave Digg a Green Arrow costume before he was sent to prison in last year's season finale. But Digg has shown little inclination to leave his current position at A.R.G.U.S. in favor of busting heads on his own time.

The most likely prospect is Roy Harper, who we know is due to return this season and has been trained in Oliver Queen's methods. This would also be fitting given that Roy Harper turned himself into the police and claimed to be the Green Arrow to protect Oliver's secret identity during the third season. There's a certain irony in the idea that Roy Harper is now honestly committing the crime that briefly sent him to prison before he faked his death.

Related: All 10 Superhero Shows Returning Or Premiering In Fall 2018

2. Does Wild Dog Know Who The New Green Arrow Is?

Rick Gonzalez as Wild Dog in Arrow

Rene "Wild Dog" Ramirez is the first member of Team Arrow to see the new Green Arrow in action, as he's in the middle of trying to stop one of his students from buying an illegal gun. Rene later dons his Wild Dog costume one more time, despite his secret identity no longer being a secret, so he can help the new Green Arrow escape capture when the police lay a trap for him. Later, we discover that the self-defense classes Rene teaches were given a generous donation and that several other small businesses in The Glades also benefited from mysterious sums of money being left behind in the middle of the night. By sheer coincidence, the total donated equals the amount of money the police believe had been stolen from the illegal arms dealers they used as bait in their trap for the new Green Arrow.

It's entirely possible that Rene acted on his own without coordinating with the new Green Arrow. It's also possible that he just happened to benefit from the generosity of the new Green Arrow playing Robin Hood with funds stolen from criminals. Then again, there's a fair chance Rene might have figured out who the new Green Arrow is and become the first of his "Merry Men."

1. What Is The Deal With The Flash-Forward Sequences?

Arrow Season 7 Flash-Forward Older William Clayton and Roy Harper

Perhaps the most unexpected element of the premiere was a series of scenes in which we see a young man on a boat trying to reach a remote island. The island is revealed to be Lian Yu after the young man finds the board that Oliver Queen used as a marker for his father's grave after he buried Robert Queen shortly after being shipwrecked. The young man is eventually captured by a hooded figure with a bow, who almost kills him before he reveals his father is Oliver Queen and that he has the Queen family Hōzen - an arrowhead that has been given from one family member to another several times as a symbol of rebirth and reconnecting. The hooded man then lowers his hood, revealing himself as an older Roy Harper, before addressing the younger man as William.

While it makes an interesting change for Arrow to now be presenting flash-forwards instead of the flashbacks to Oliver Queen's past which appeared throughout the first five seasons of the show, it is unclear just why we are getting these glimpses of the future. This seems particularly counter-intuitive since it kills any sense of drama that William Clayton might be hurt or die in the present-day storyline. On the other hand, this does seem to explain earlier reports that Roy Harper would appear in Season 7 without undoing the send-off he and Thea Queen received in Season 6 and just what the solo-storyline centered around William might involve.

More: The Flash: 5 Big Questions We Have After The Season 5 Premiere