He does have a little something to prove with a Dubois rematchThis, nothing to prove at heavyweight anymore. Leave while your brain and body are intact, he has no business there as it is.
I don't mind him going down to 190 again and having a go, at least for him to feel it out and see if he wants it or not? This isn't Roy or the early 00's, the science behind taking the right amount of time, getting down in weight properly etc it's lightyears ahead of where it was. Plus you have to factor in Usyk's team and their state of the art approach to training too.