I don't think he'd sell out the MEN for a McCloskey rematch. I could be wrong but were tickets not still available in the week of the fight the first time around? And that was before the loss to Peterson, The Man In The Hat™ and getting sparked by Garcia. Khan has further proven he can't accept a loss without blaming someone. Not to mention McCloskey got a dodgy decision against Prescott and was shown up by Corley.
Katie Price will become a Saint before Khan vs. McCloskey II sells out a big arena.