Zoro definitely, Sanji we will see. Right now there is no reason for Sanji to become top tier, he can, but there is no necessity for it.
And Jinbe starts stronger in this arc, we will have to see how the suit progresses.
And Jinbe starts stronger in this arc, we will have to see how the suit progresses.
Well, depending on what you call as a top tier- I don't see him beating any, but he'd put up a good fight and be stronger than pretty much everyone else. Whether that makes him the weakest top tier or the strongest high tier I don't know.
But with this arc I very much expect swordsman Zoro vs swordsman King, pervert Sanji vs pervert Queen and Fishman Jinbei vs Fishman Jack. And that'll be a pretty clear sign of the powerlevels of these guys.