As far as I can tell, reopening Kaido's scar is already above YC.
Thats if it even happens first. Which is my point. I dont think it will personally. I think hes going to have to deal with King after some shift in the battle when the YC fights are set up. Right now, Jack, Queen and King are not poised to fight anyone truly. Marco is "holding" off both but there are no hints him actually getting a fully warranted fight against either.
Secondly, I think there's a huge discrepancy going on in the Zoro fanbase. Half think hes just going to cut Kaido like Oden, but Luffy will deliver the finishing blow. The other half thinks Luffy will "win", but Zoro cuts Kaido's head off.
All I'm saying is we need to wait and see what happens. Everyone for sure thought Jinbe was fighting Jack, now he's fighting WsW. People thought Franky vs. Sasaki was dead in the water because Yamato started fighting his armored group, but then he showed up out of nowhere to take over, reviving that matchup.
We all need to have patience before we jump the gun. This is going excruciatingly slow because of how many different battles going on, so it may take us a long time to even see what happens.
If you guys are right, awesome, I have no issue with that, at least if Oda explains it logically.