User blog comment:Ricizubi/It will be Shirahoshi, if this doesn't convince you even one bit that I give up/@comment-208.102.66.133-20111208065403/@comment-99.241.142.52-20111211073111

If, when, blah blah blah... We are in the now, and you could say the same thing about Vivi joining later, but it wont happen. Like countless other people Luffy has met like Ivanko, Jinbei is a trusted ally, no more. He will help when he can, but his role as a character lies elsewhere. And seriously though, what would be Jinbei's reasoning to want to join? What is his Will of D? Why does he want to travel the entire grand line? I can't think of one god damn good reason.