Y'all really think Kaido is going to die when the scabbards were outright suicidal and Oda still didn't give them the death they deserved?
Nah. He's going to be defeated by Luffy and after that plot will find a way to make sure he never hurts wano again. Perhaps Shinobu will turn him into a weak old man, or raizou will trap him in a scroll for eternity, or maybe he'll just go to impel down. Regardless this is Oda we're talking about, kaido isn't dying.