Probably a high-diff fight, similar to how it would've been if their first fight wouldn't have been stopped. Judging from feats.. you have a guy who hasn't even gone anywhere near to "all out", vs a guy who has gone all out to the point where he couldn't stand anymore.
Luffy will always be above Zoro.. so its safe to assume that the winner of their fights will be luffy. Its simply the "difficulty" he wins with, that needs to be decided.
High diff my ass. By current feats G4 Luffy would massacre Zoro.
Because i'm sure we have seen a Zoro go all out to the point where he can't stand anymore, like we have seen luffy right?