Like I said, at the absolute end of the story. We'll see. I've very much been for the idea, especially after he killed Ace. Yes, Oda doesn't kill characters often at all, but does when it he feels it matters.
I'm just saying, in an event like this, wait until he beats Kaido and let's see the fallout from it. If he's "fine", then whatever. But if the topic floats that he's literally killing himself with it, then there's nothing that Chopper can do. It's not a disease.
Again, I'm just guessing. Never actually said it's happening lol