Assuming Zoro has to fight Mihawk when Luffy is fighting BB
Well yes, the question here is who Zoro's last fight is. Not "will Zoro and Mihawk fight again", but "who is Zoro's final opponent?"
His last fight, presumably being, in the final war. Where it makes no sense for Mihawk being an opponent. And the idea that there's going to be "epilogue" fights
after Luffy's already defeated his greatest foe doesn't make much sense to me.
Lmao imagine Luffy having his biggest battle to death against a Yonkou level crew for the title of PK, and Zoro, Luffy's right hand, just up and leaves in the most crucial time in his SH career to go fight Mihawk.
Now that is trash tier writing.
"One Piece is the story of how the Strawhat crew did the impossible, fought the world and changed it for the better.
Except Zoro. He dipped at the last minute."
Would maybe be the biggest character assassination in Shonen, given how long we'd be waiting for it.
Then Shiryu will be Zoro's final opponent?
If BB's the final villain, yes (unless the Tenth Blackbeard Pirate is a better match)
If Im's the final villain, it's Gandhi.
If it's the Marines (long shot), then it's Kizaru
It's only if it's Shanks in a gargantuan plot twist (which is by far the longest shot and one I don't believe is even slightly possible, apologies
@Paperchampion23) then it makes any sense.