Marvel's Agents of SHIELD has come to an end - and it left a lot of unanswered questions. Marvel Television's flagship TV series, Agents of SHIELD began as the MCU's official tie-in show. As the years passed, though, the relationship between Marvel Studios and Marvel Television became more distanced, and the connections became a whole lot less overt. Even the cast now admit this was to Agents of SHIELD's advantage, giving the writers a chance to build a mythology and lore all of their own.

Agents of SHIELD season 7 capitalized on that mythology, sending the SHIELD time on a jaunt through time that served as their own version of Avengers: Endgame. It explored the history of SHIELD and Hydra, returned characters from past seasons and even Agent Carter, and even some major Inhuman plots. Every major character was given a satisfying send-off, with Mack becoming SHIELD Director; Yo-Yo transformed into SHIELD's version of the Flash; Quake running a team in space; May taking charge of the new SHIELD Academy; Coulson serving as a global troubleshooter; and Fitz and Simmons retiring to bring up their daughter. Most hilarious of all, Deke got to remain in an alternate timeline, where he became head of that reality's SHIELD.

Related: Agents of SHIELD Season 7 Ending Explained (& What Happens Next)

But Agents of SHIELD has been running since 2013, and naturally that means the final season couldn't possibly wrap up all the loose ends. Here are all the unanswered questions after Agents of SHIELD season 7.

What Happened To Inhuman Persecution On Earth?

Secret Warriors in Agents Of SHIELD

In Agents of SHIELD season 2, Terrigen entered the world's water and food supply. As a result, all over the world people with ancient Inhuman genes who unwittingly ingested Terrigen began to undergo Terrigenesis. Their powers were unexpected and uncontrollable, and as a result they were viewed by the public as potential threats. SHIELD dealt with extreme factions such as the Watchdogs, but the prejudice and bigotry was still there. The plot was dropped after Agents of SHIELD season 4, with some references in season 5, but that's about it. The show's course-correction is most likely a result of the failure of the Inhumans TV series, which caused Marvel to completely drop the Inhumans.

What Happened To Vijay Nadeer?

Agents of SHIELD Vijay Nadeer

Vijay Nadeer is easily Agents of SHIELD's most frustrating loose end. He was the brother of US Senator Ellen Nadeer, and the two siblings became deeply distrustful of aliens after the Chitauri invasion. Though Vijay did not know it, he was actually an Inhuman, and began to undergo Terrigenesis after he was exposed to Terrigen. Vijay's transformation was a strange one, unusually drawn out, and it took Simmons' assistance to help him break out of the cocoon. He subsequently manifested superhuman speed and reflexes, but he was killed by his sister, his body dumped into the sea. There, he began to undergo Secondary Terrigenesis. It's reasonable to assume Marvel planned to link this in to the Inhumans TV series, which fleshed out the concept of Secondary Terrigenesis and revealed it was dangerously unstable; however, Inhumans season 1 was hardly a success, and the plot was dropped. Vijay hasn't been seen since Agents of SHIELD season 4.

What Happened To Robbie Reyes' Ghost Rider?

Ghost Rider Robbie Reyes Agents of SHIELD

Agents of SHIELD season 4 introduced Gabriel Luna's Ghost Rider, to popular and critical acclaim. The show's version of Ghost Rider was the sworn protector of the Darkhold, an ancient tome of dark magic with untold power. At the end of season 4, Ghost Rider opened a portal - of a type familiar to anyone who's watched Doctor Strange - and vanished with the Darkhold. He hasn't been seen since, most likely because the VFX for Ghost Rider were pretty expensive. Marvel Television briefly hoped to launch a Ghost Rider TV series starring Gabriel Luna, although the show's relationship to Agents of SHIELD was unclear; unfortunately this was canceled.

Related: Why Ghost Rider 3 Will Never Happen

What Happened To Deathlok?

Agents of SHIELD Deathlok

Agents of SHIELD season 1 introduced Mike Peterson, a man who was granted superhuman powers after he was injected with the Centipede Serum. Over the course of the season, Mike sustained grievous injuries, and he was transformed into a character very familiar to comic book readers - Deathlok. He was a villain for some time, but broke free from Hydra's control and began rebuilding his life. Deathlok continued to work for Phil Coulson for some years, but he was only called on occasionally, in seasons 2 and 5. It's actually quite a shame Deathlok wasn't called in to help battle against Izel and, subsequently, the Chronicoms.

What Happened To Donnie Gill?

Donnie Gill Agents of SHIELD

Donnie Gill was introduced in Agents of SHIELD season 1, a genius student at the SHIELD Academy of Science and Technology who unwittingly granted himself the power of cryokinesis. He returned in season 2, where it was revealed he'd been weaponized by Hydra but had gone rogue. Quake shot him with a sniper rifle before he could kill her friends, but his body was lost in the Moroccan sea, and officials were unable to find a body. There were hints he'd transformed into a posthuman state and had thus survived even this extreme experience, but these were never followed up on. The show moved on to focus on the Inhumans, and dropped this particular character completely. In the comics, Donnie Gill became the supervillain Blizzard, a classic Iron Man foe.

What Happened To The Rising Tide Hacker Group?

Agents of SHIELD Skye

Quake has had a long character journey; in fact, when her story began she didn't even know her real name, but was instead going by "Skye." Skye was a member of an elite group of hacktivists called Rising Tide, who had flourished after the Chitauri invasion of New York. They were remarkably capable, and had even managed to penetrate SHIELD's firewalls on occasion. Naturally, as Skye discovered her true heritage she moved away from her old life, and by Agents of SHIELD season 2 she'd abandoned all ties to Rising Tide. The conspiracy theorists have never been seen since, although they've surely remained a thorn in SHIELD's side.

What Happened To Felix Blake?

Agents of SHIELD Felix Blake

Felix Blake had the potential to become the dark mirror image of Phil Coulson, but sadly he was wasted. He was a SHIELD agent who served under Nick Fury, but he was critically injured investigating a conspiracy that turned out to be Hydra. Radicalized by the experience, Felix Blake dedicated himself to protecting the planet from alien threats, but he was willing to go to extreme measures to achieve this goal. He was the mind behind the Watchdogs, the sinister anti-Inhuman terrorist group, but hasn't been seen since Agents of SHIELD season 3.

Related: What Agents of SHIELD’s Ending Means For The Rest Of The MCU

What Happened To Bobbi & Hunter?

Bobbie Morse and Lance Hunter in Civilian Clothing in Agents of S.H.I.E.L.D

Bobbi Morse and Lance Hunter joined Coulson's SHIELD team in season 2, and they were real fan-favorites. Their time with SHIELD came to an untimely end in season 3, however, when the two were forced to break off ties with the organization in order to avoid an international incident. Lance returned in season 5 to help FItz escape from General Hale, and he revealed the two are working as independent operatives nowadays. Behind the scenes, Marvel had intended to launch a spin-off series starring these two characters, called Marvel's Most Wanted, but ABC passed on the show and it never happened.

What Was The "Hydrogen Wave" Really A Cover For?

Agents of SHIELD Lighthouse

The Lighthouse has served as SHIELD's base from season 5, and according to Phil Coulson it was constructed to deal with a potential extinction level event described as the "Hydrogen Wave Crisis." As such, it was built to be robust enough to literally survive the end of the world, and in one timeline it contained the last survivors of the entire human race after the planet was cracked like an egg. But Agents of SHIELD season 7 suggested the Hydrogen Wave Crisis was actually a cover story for something else; in the adjusted timeline it was a Chronicom attack on the Lighthouse, but it's impossible to say what it was in the real timeline.

How Did "Ghost Flint" Survive Agents of SHIELD Season 6?

Flint in Agents of SHIELD

Flint was a young Inhuman encountered by the SHIELD team in a future timeline, and in season 6 the monstrous Izel used the power of the Monoliths to recreate Flint in the present day. Other Monolith creations only continued to exist while they were in close proximity to the Monoliths, and were destroyed along with them; for unknown reasons, the Agents of SHIELD season 7 finale confirmed Flint had survived. It's nice for the popular character to get a Happily Ever After, even if it is unexplained.

How Many Years Did Fitz & Simmons Spend With Their Daughter?

Fitz and Simmons drink coffee in bed in Agents of S.H.I.E.L.D.

As Doctor Who would put it, Agents of SHIELD season 7 was rather "timey-wimey." The time travel allowed Fitz and Simmons to have actually spent years away from the team, with Simmons becoming pregnant and giving birth to a daughter, Ayla. It's unclear how much time Fitz and Simmons spent hidden away on the Zephyr, but it was long enough to bring up Ayla. She mustn't have had much of a social life in the early years of her life, however, given she had only her parents and Enoch on the Zephyr with her.

More: Agents of SHIELD Introduces Marvel's Version Of The Flash