Honestly, I DON'T want a final war... something like Enies Lobby 2.0 would be great for me. Yeah, I know that it's gonna happen and it'll be of the largest scale possible (possibly with every character -- ally or former villain, plus the main villains of the WG -- we have seen so far), I already accepted that... but Oda just can't handle wars. Wano was an even bigger mess than Dressrosa or Marineford (yeah, I know Dressrosa isn't a "war arc", but it was kinda similar, with many characters fighting at the same time).