Content Warning: This article contains references to drug trading, violence, and substance misuse
Throughout Better Call Saul, audiences have been given brief glimpses of Saul's life after the events shown in Breaking Bad. And with the final season underway, it seems likely that Better Call Saul's plot will start to merge with the story that fans had already seen from Walter White's perspective many years ago.
There are several main characters in Better Call Saul that don't even appear in Breaking Bad (Kim, Lalo, etc), so unless the show simply kills them off, it seems that the writers might have to retcon some of Breaking Bad in order to explain their later role in Saul Goodman's story and tie up any loose ends.
Saul and Walter's First Meeting
With Bryan Cranston's return as Walter White pretty much confirmed by Better Call Saul's writers, it seems highly likely that their stories will converge at some point in the near future. Breaking Bad already showed the first meeting between the two protagonists, so the most sensible way for Better Call Saul to introduce Walter would be through that same encounter.
Walter White will inevitably be the downfall of Saul Goodman, with the downfall of his drug empire being the reason that Saul is forced to flee Albuquerque and adopt his new name, Gene. It would definitely be interesting to see this initial interaction between the two, knowing where their relationship will eventually end up.
Mike's Surveillance of Walt's House
In season 3, Saul tasked Mike with bugging Walt's house after his separation from Skyler. It was a tactical move to ensure that Skyler didn't do anything to put their work at risk, but it also demonstrated Saul's willingness to use immoral methods to maintain his power.
This act also led to the discovery of the Salamanca Twins by Mike, so it could be an important scene to revisit in Better Call Saul in relation to Saul's status as a 'friend of the cartel.' Perhaps there's more to explore here in regards to the complex relationship between Saul and Lalo/the Salamanca family.
Hank Kills The Salamanca Twins
In the Breaking Bad episode, "One Minute," the Salamanca twins finally meet their match at the hands of DEA Agent, Hank Schrader. The twins have been a huge part of Better Call Saul's narrative, so it seems totally plausible that the show will revisit their deaths in its final episodes.
Better Call Saul's final season seems extremely focused on the Salamancas, with subplots between Nacho, Lalo, Gus and Hector taking up a lot of the airtime. For this reason, it's definitely possible that the twins will play a big part in the show's conclusion, and the fallout of their deaths on the Salamanca family could be explored a little more. The fall of the cartel is something that many fans want to see in Better Call Saul's final season.
Walter and Jesse Kidnap Saul
In the Breaking Bad episode, "Better Call Saul," Walter and Jesse kidnap the titular lawyer in an attempt to get him to represent Badger in court. The scene has become widely discussed among fans in relation to a certain line that's spoken by Saul during the kidnapping: "It wasn't me, it was Ignatio!"
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The line obviously spawned the concept of Ignatio Varga as a character, but it still isn't completely clear why Saul would bring his name up in this moment. Perhaps season 6 of Better Call Saul could revisit this scene in its final episodes and explain the context behind Saul's words.
Saul Suggests Killing Badger
Despite now being in the final season of Better Call Saul, there's still a long way to go before the Saul from that show becomes the crooked, immoral lawyer that fans know from Breaking Bad. Many fans have speculated that the final episodes of Better Call Saul will revisit some of the most crucial moments from Saul's journey with Walt that made him as morally corrupt as he is.
One of these moments comes when Saul suggests to Walt and Jesse that they "swat the mosquito," referring to having Badger murdered in order to silence him. This seems so unlike the Saul that fans know from BCS, so revisiting this scene could be an effective way to show just how different he has become.
Gus Fring's Death
Despite not appearing until season 3, Giancarlo Esposito's Gus Fring has quickly become one of the biggest and most dangerous villains in all of Better Call Saul. Of course, fans already know that the drug lord will meet his demise at the hands of Hector Salamanca, but it could still be interesting to see this play out from Saul's perspective.
It's also not clear quite how much Saul knows about Gus throughout his time on Breaking Bad, as the two only ever interact indirectly through their mutual friend Mike. By revisiting the build-up to Fring's death, Better Call Saul could reveal a more direct relationship between the two.
Saul Tricks Jesse's Parents
The first couple of seasons of Better Call Saul focused strongly on Jimmy's cleverest cons, so it would make a lot of sense to see the final episodes of the show revisit some of Saul's slipperiest tricks from Breaking Bad. His manipulation of Jesse's parents to sell their house to their son is one of the first that comes to mind.
Throughout Breaking Bad, Saul was used almost exclusively by the main characters as a way to get out of tricky legal situations with moral ambiguity. To this end, Better Call Saul revisiting some of these scenes would be a very effective way to show how Jimmy/Saul's journey played out throughout the years before he became Gene.
Walter White Poisons Brock
The cat-and-mouse chase between Walter and Gus was one of the defining elements of Breaking Bad, and Walt's master plan of poisoning Brock and manipulating Jesse was equally intense and thrilling to watch. It was also a huge turning point in Saul's character arc, as he helped Walter lift the ricin cigarette from Jesse.
Seeing this event from Saul's perspective in Better Call Saul could be a massive moment for the character. The Saul that fans know from BCS still considers his morals to be important and valuable, but this moment from Breaking Bad just proves that he's lost all sense of conscience. This loss of morality could definitely be addressed in one of Saul's future flash-forward scenes.
Mike's Death
Although fans already know the untimely end that's awaiting Mike at the barrel of Walter White's gun, revisiting this scene (and perhaps shedding some light on the moments that came before it) would definitely be an extremely emotional way to say goodbye to the character for good.
Despite only being a secondary character in Breaking Bad, Mike has become one of the most well-developed and fleshed-out characters in both shows, so it would be a shame for him to have an unceremonious end in Better Call Saul's conclusion.
Saul Flees Albuquerque
Although fans have seen glimpses of Saul's final days in New Mexico, his actual escape from Albuquerque has still been left pretty much in the dark. There could be a few secrets to unravel throughout his departure, and Better Call Saul could easily bring these to light.
It's also unclear where Kim Wexler is during this time in Saul's life, so a retcon of these moments could shed some clarity on her role in this part of the story. There have been plenty of times that Better Call Saul fans have felt bad for Kim Wexler, and her husband fleeing the state to protect himself could definitely be one of those moments.