I don't think it be that hard booking AJ vs Miz, maybe if AJ still had the Crew hanging around it would be but...
You have two guys in AJ and Miz that weekly gets the greatest reaction on the entire roster. It shouldn't be hard for people to care about the moneymaker vs soccer mom haircut. Yes they've technically touched in random matches but there's plenty they can still do. I'd have AJ go over personally. Getting shaved help get Punk going, do soemthing new with Miz.
They're going to want to cram as many people into the Alamodome as possible, Cena still moves the needle as champ with the media, not so much chasing. AJs been a good champion. But if they're still talking Cena/Taker, they're going to want that be as big as possible. I don't think they're going to wait. Although I might be hoping for Cena/Taker at Mania for the belt.