I love zoro and ALL his action not only in this chapter but during the whole Arc. He is a Monster that Will shine even more.
But lets not put the weagon in front of the horses.
Some People saying he is already admiral lvl is BEYOND nonsense. The best feat for luffy until today is an extreme diff against a YC1 that IS more than sure BELLOW admirals. Zoro didint fought not even a YC3 yet, imagine a YC1...zoro is shining so lets get HYPED not dumb.
Not even luffy Will be able to solo a yonko this arc, kaido Will only Go down with the effort of LOTS of people Fighting him.
I do think zoro Will play a big role in Kaido defeat, a great damage or a final hint to kill a already very damaged kaido.
So... no one in this Arc Will fight Kaido alone like Oden did and could have won, not even close to that. Lets be realistic. So If zoro be able to kill or damage kaido It Will be with the help of lots of others, he or anyone Will NOT solo him.
Oda is not dumb to put luffy, zoro etc so strong at the point that the next enemies as admirals, other yonkos and their comanders would fell easy.
And thats why kaido CANT go down without a group Fighting him. Hes already the strongest in the world, If he goes down for 1, 2 persons theres no more chalenges ahead. Its kind simple.