I have a strange feeling about the story for this game. Here’s my prediction:

Lucia breaks out of prison with the help of Jason and an outside character. Lucia and Jason then go on the run turning into a Bonny and Clyde story. Doing heists and robbing people to make some cash to get away from the cops. But then, they rob the wrong person or they were forced to rob the person by the other character and are forced into the drug trade. Maybe the other character was a narco that either Lucia or Jason knew. The FIB or DEA catch wind of this and since Lucia and Jason prove to be very good criminals, they then rope them into taking down the drug trade by robbing and pulling heists.

This goes on until they both eventually find a way out or plan to pull “one last heist” that’ll free them from both the narcos and the FIB or DEA. But then, whoopsie, turns out either Lucia or Jason had some ulterior motive for tagging along with one another. While Lucia or Jason was in prison, they struck a deal with either the narcos or FIB to either escape the country or wipe their record. The catch? They had to bring the other person in, kill them, or just generally betray them.

Then the final act would be one of three options. Lucia kills Jason, Jason kills Lucia, or they both fight the narcos and FIB together Bonnie and Clyde style. Either way, bullets are gonna be flying.

The end game would be only Lucia or Jason are left alive and free of both the narcos and FIB. But, Maybe they became a crime Lord in the drug trade thanks to the other person dying or the FIB unknowingly.

Based on how Rockstar makes their stories, I predict one of the two is gonna bite the bullet by the end.