On mobile, so can’t give a lengthy answer. I might later on. It’s not that I don’t want it to happen, or that it won’t, it’s that I don’t see the point of it at the moment. Fights in One Piece aren’t just about “intuitive” movement. More often than not, they should inform/reinforce/grow the character in a way.
There is nothing from fighting King I see that informs/grows Zoro’s character. It would just be a fight that conforms to long held formulas, and having it as Zoro’s last contribution for the arc at this stage undermines the groundwork Oda laid out for him.
I also find the order of events strange. If it were so important for Zoro to fight King, why not have it occur before he went on the roof? It allows King to fight a fresh Zoro and preserve his threat level. Zoro learning to cut fire would have on panel basis rather than being offscreened, and Zoro would grow from the fight to better prepare him for his time against Kaido.
The opposite idea is pretty ridiculous too though.
Instead of preserving the threat level of Kaido, people are saying that a weakened/half recovered Zoro will go back to the roof, 1v1 him later, and kill him, all while Luffy does nothing. If it's not that, it's that Luffy wins and Zoro killing a defeated Kaido like some sort of executioner is an amazing thing for Zoro to accomplish. Both options seem beyond the point of logic to me than not "preserving" Kings threat level
If Law miraculously leaves Zoro on the roof next chapter, then I'll believe the possibility is there, but removing him from the fight when it took them 15 chapters to even get to Kaido the first time seems pretty definitive to me that Zoro is NOT supposed to return to that fight.
Let alone the fact that when Luffy is serious, Zoro listens to his captain. He is the only person he respects.
Edit: like guys, already having a 20 chapter fight against Kaido before anything else was already unorthodox. But it still ended with Luffy getting his matchup. Luffy almost always starts his main fight even before the other ones start. Zoro going back down and now getting his main fight is not that shocking.
The manga is more about Luffy than Zoro lol, it's time we take the bias goggles off here.