After Jinbe, I wonder how exactly the last crewmate will join the Straw Hats.
Will the scenario be similar to Brook where they're asked to join and accept in the same chapter, or will it be similar to Robin, where the final member appears out of the blue and asks Luffy to join?
Or will it be a completely different scenario altogether?
It's probably already been discussed, but every crewmember, minus Robin, has initially refused/declined Luffy's invitation, but had a change of heart or some baggage which was taken care of that made them join in the end.
Jinbe's Big Mom baggage has just been delayed for the time being and soon to be cleared if he's heading towards Whole Cake Island.