> The reason Jinbei decided to stay for Luffy to go up is because he felt the enemy in the stage would take all his attention
> An history between them was introduced that needs time to be developed
That looks like a set up battle to me
I see two likely possibilities for the F5 matchups:
1:
Nami vs Ulti
Usopp vs P1
Franky vs Sasaki
Robin vs Maria
Brook vs WsW (Jinbe fights injured Jack instead)
Chopper vs several Numbers (probably Numbers 1,2, and 3) or Perospero
2:
Chopper vs Page One
Nami and Usopp vs Ulti
Franky vs Sasaki
Brook and Robin vs Black Maria
Jinbe vs WsW
Luffy finishes off Jack
In this scenario, the strongest of the weak trio and the strongest of the mid trio get to have solo fights while the other 4 have tag teams (though I don’t know if Oda would be willing to draw Brook slashing a woman). In this scenario, I’d say that Ulti is slightly stronger than P1 and Black Maria is slightly stronger than Sasaki in order to balance out for the fact that they had to be tag teamed, and WsW would be the strongest F5.
Oda could have Jinbe take off WsW’s mask, and then Brook shows up, and Jinbe decides to leave WsW to Brook so that he can help out Luffy by holding off Jack. Oda could make it so that WsW is angry at being ditched by Jinbe, which makes WsW motivated to beat Brook so that he can settle things with Jinbe. Or even make it so that Jinbe doesn’t recognize WsW even after seeing his face and then hand him off to Brook, which would piss off WsW and hype up Jinbe for presumably being able to beat WsW so easily in the past that he doesn’t even remember the guy