WWE is very high on Antonio Cesaro, as they believe he is someone who will draw big for them in the future. They will continue to move him up the card. Word is that WWE is looking to keep Cesaro happy, which may be another reason they hired his girlfriend Sara Del Rey as a trainer in developmental.
There is also some concern that Punk may become worn out due to how hard he works. That is a concern for the company as they only have two legit top draws, Punk and Cena.