I hope Oda give Zoro or Sanji or Jimbei, or their combination, the role to defeat the main villain in the current arc, Egghead, and in maybe a couple of upcoming arcs, instead of Luffy.
Thinking of some ways to execute it:
- in the Egghead's climax, Luffy get some narrative obligation to help Vegapunk solve some ancient environmental puzzles that requires his unique rubber abilities or CoC or future sight, and since he have to wreck his own brain and use his intelligence outside fighting for this important quest, Luffy finds it so difficult and exhausting he can't be involved in fighting the main villain at all. Zoro-Sanji-Jimbei will be the ones to defeat the main villain.
- Luffy and Vegapunk is separated from the rest of the crew, to another island or dimension whatever, and each group will have their own adventures and main bosses.
Thinking of some ways to execute it:
- in the Egghead's climax, Luffy get some narrative obligation to help Vegapunk solve some ancient environmental puzzles that requires his unique rubber abilities or CoC or future sight, and since he have to wreck his own brain and use his intelligence outside fighting for this important quest, Luffy finds it so difficult and exhausting he can't be involved in fighting the main villain at all. Zoro-Sanji-Jimbei will be the ones to defeat the main villain.
- Luffy and Vegapunk is separated from the rest of the crew, to another island or dimension whatever, and each group will have their own adventures and main bosses.