If Marvel was a manga company, how would things change?

[Celgress]

I don't know about that. Look at Dragon Ball. There's a reason why Super takes place before "End of Z".

Yeah, Super is a bit of a soft reset and thus a letdown, IMO. Still, we were introduced to some interesting new concepts, intriguing (and visually pleasing) power-ups, and fascinating characters (unfortunately they did not develop most of these characters) to keep things fresh so it wasn't a total loss. I'd also argue that Goku Black/Zamasu is the best, most well-rounded villain Dragon Ball as a whole has produced since Cell (his motivation made perfect sense he didn't simply want to destroy or hate our heroes for no good reason), even if his story arc went off the rails near its end.