I don't see how Wilder can improve in a rematch. He was skinny as a stick and he can't really lose more weight in conditioning training and his stamina was already questionable. His punch output was very very low and he landed next to nothing. None of this can be changed unless Fury allows it. Fury on the other hand can improve. He was in bad physical shape in the fight, he gassed badly in the last round. If he improves 10% then Wilder has no chance at all.