How I'd love if the final arc of Super borrowed a lot of ideas from the Universal Conflict arc of SDBHeroes:
This would tie perfectly into the ending of the Tournament of Power arc:
- 17's wish restored the Future timeline, which explains why Fused Zamasu is still alive;
- 17's wish also restored the 6 universes erased by Zeno: Hearts, one of the main villains of the arc, could be a mortal of the erased universes who seeks revenge on Zeno for destroying trillions of life simply because he was bored one day. That is how you write a morally grey villain.
- Why did this villainous group not make their move until the end of the Moro arc? Because they were still gathering members and building their strength, and sense a window of opportunity now that the God hierarchy is distracted by Merus' death.
This arc would succeed so easily that it's writing itself. I don't know why the writers don't push the idea that 17's wish had huge ramifications for the future, because the wording of his wish is objectively ambiguous. "Restore all of the erased universes", he DOES NOT specify the universes "erased at the Tournament of Power". This is super ambiguous.
Also, I swear, if the next arc is a fucking tournament I'm going to scream.
At his core Zamasu is good like Shin, though I guess you could say he was so fastidious that it backfired. But you know, for this "Future Trunks Arc" you had to depict Zamasu and Trunks' inner conflict, right? If this was back when I was drawing the manga myself then I doubt if I could have done it. I mean, I'm not very good at depicting the characters' psychology on the page. So this all came together because now I only have to think up the story. [...] On my own, I doubt I would have been able to express Zamasu's fall to the dark side.
Akira Toriyama, DBS vol.4 joint interview with Toyotaro