He showcased Armament Haki in Dressrosa, and the Wano arc was absolutely magnificent ... if the Straw Hat Pirates cross paths with the Red Hair Pirates, then Zoro will most likely fight against ...
The Elbaf arc of One Piece is underway ... such as Luffy, Zoro, and Sanji, but the vast majority of the crew remained untested. The Red Hair pirates have no devil fruit users.