To be honest I do want to see the rematch purely because I think Haye entered the first fight with a late niggle which blew up in the fight. If he's injury free this time I want to see if he still has a bit left in him.
Regarding the trash talk, I can't see how Haye can do it without embarrassing himself i.e. if he goes down the I hate Tony Bellew route, it will be an embarrassment given how much he was grovelling at Tony's mercy after the first fight. Equally if he goes down the I was injured route, people won't take him seriously again given the Klitschko fiasco.