Have to wait for official translations...but has Oda ever shown Zoro gunning specifically for the main villain this hard in any arc before? It's not just this chapter but also all of his dialogue about Kaido during and before this arc. At first it seemed like he was talking about targeting Kaido in a general sense but now and in hindsight it looks like he really wants to try his hand at him personally. This is a first, no? Did he have this much intent in Skypeia against Enel before his attempt at him? I don't recall as such, but I could be wrong. Oda is definitely teasing Luffy+Zoro vs. Kaido here. Doesn't mean it'll happen, but he's being playful with the possibility at the very least.