An interesting theory was brought up on today's episode of The Midnight Boys pod. Basically, it's that the event at the end of this episode sends everyone back to their original timelines, to their original lives, and they each finally see/remember the lives they had. Then, at some point, there's somewhat of a "We have to go back" Lost vibe, and they come together again to either save or re-establish the TVA in some way. Something along those lines definitely feels in line with the themes of this season. At the very least, I don't think there's any way we don't see Mobius remember or experience his former life.