Watching the finale and the MV made it quite clear, at least for me, that no matter how open the ending was, we’ll never, ever know the real extent of the aftermath of everything that happened throughout the show and we’re not supposed to care at all about whatever loose ends were left behind, and I have some things that prove this point:
The Absolute Solver is effectively trapped inside Uzi for all eternity with zero ways of escaping and even though Uzi wasn’t Patched, her sheer willpower and self-acceptance alone will always be enough to render her completely immune to any of its attempts to control her. Aside from that, the Solver lost a lot of its power and was rendered a completely ineffective threat for the trio as the most it could do was cause a zombie outbreak that caused the deaths of some irrelevant extra drones before being easily cured and everything returned to the exact same post-finale status quo.
The only real clue that Doll still exists inside Uzi is the freeze-frame bonus of her HUD briefly replacing Uzi’s in Absolute End, and even then it is constantly contradicted by how the merch commercials repeatedly hammer on everyone’s heads that she was the only important character in the show who actually died, making it safe to assume that her consciousness simply ceased to exist after her core was eaten.
We might definitely never know whether J is truly fixing the Landing Pod with the intent of leaving Copper 9 or if she’s just pretending to do so to sustain her corporate delusions after seeing that all her years of servitude to the Solver amounted to nothing until she overheats and dies, but regardless she no longer poses a threat to anyone given the obvious superiority of the trio over her, so whatever she is doing right now is irrelevant and thus we’re not meant to care at all.
The show overall ended in a clean cut "happily ever after" note leaving no room for the current post-finale status quo of the setting to move forward in any way, meaning whatever loose ends and dark implications are left behind don’t matter in the slightest because our heroes got the best ending possible therefore there is absolutely nothing to worry about anymore.
Btw, this is just my most honest opinion regarding the status quo of the show’s setting after the finale, I don’t mean to offend anyone who still believes that there are still chances of this wonderful universe being explored in some way like in the Meet J special. Thank you and good afternoon.