With regards to a potential reboot on Netflix or whatever, was thinking about how it could be structured. Occurred to me, that they could try to do so as a 5 part miniseries, which is largely conceptual. With the first four ones each focusing on one particular aspect, and everything culminates in the last one. The ones not in center stage in each episode, can have small beats play out in the background. Sorta like Black Mirror, mixed a bit with The Leftovers, each piece being 75-90 minutes. Here's how I'd do it.
6x1: Team Machine. Shaw, Fusco, & whoever else they've enlisted for this purpose. Introduce a wrinkle in the background, which co-incides as a B-Plot of the following parts.
6x2: The Government. Now that they no longer have an AI, they'll be looking to get another one to safeguard national security. This one's heavy on political science fiction, with the stuff pertaining to proliferation, clashes with the private sector, ethics & so on.
6x3: What's left of Samaritan. Garrison indicated those under Samaritan were all 'reassigned'. Show how they're coping with this. Some could've moved on, some are pretty damaged (as this ASI gave them purpose), & many (Mona, Travers) could be pretty vindictive, & intend to do something about it.
6x4: Finch. He might have the life he wanted, but it's only a matter of time before it starts to unravel, & The Machine gets to him again. They could try doing simulations here on what's about to happen, & that would motivate him to prevent it. Control could also be re-introduced through this one, with TM leading him to her.
6x5: All of these storylines converge, & everything goes to hell.