So what if ZKK is dead? Zoro's been eating Ws since the start of Wano; furthermore, Zoro being knocked down after blocking a Hakai is hardly an L, if anything this actually shows Zoro's godly endurance and willpower once again.
I actually think that this chapter might have confirmed ZKK, if anything. We are this early and :
•Zoro has already used Ashura and it seems like he scarred Kaido
•Zoro has yet to have his named chapter. And we should logically expect something exceedingly massive from it, given the fact the the man has had this hype ALREADY.
•Zoro has reached his limits and should be out, meaning he will have time to recover. Him being out also destroys any possibililty of him fighting King.
Now:
Zoro will be down and Luffy will eventually take down Kaido 1 vs 1. Luffy will be very tired as well.
Then Kaido will go in his dragon form (thanks also to the Zoan recovery) and fly, under the eyes of the Flower Capital.
That's where Zoro will kill him with Hiryu Kaen (which was previously unable to hit Kaido, heavy foreshadowing that it will actually land) under the eyes of the people of Wano. He will be behaded.
And we know much it has been emphasized that Kaido's head needs to be taken.
This will mirror the legendary Ryuma slaying a dragon in the same fashion.
This will happen in the chapter named after Zoro.
The last act of Zoro's greatness.