They need to stretch the eventual HHH/CM Punk match out another 18 months imo. Have him take the strap from Cena clean at Summerslam, with the Cena turn happening the next night on Raw (see: Bret Hart 1997). In the mean time, Punk fends off a few lower level cats before facing off with Del Rio and Cena at Survivor Series in a tripel threat match, with Cena brawling with The Rock (who is in the front row tonight) inadvertantly eliminating himself from the match as they brawl all through the arena and do heaps of crazy stuff. Punk defeats Del Rio narrowly, Punk still claims he's the best wrestler in the world. Del Rio wins the Rumble. Fast forward to Mania, Punk faces Del Rio in a last man standing match, and just as Punk goes to stand up at the count of 9, Triple H (at ringside by this point) nails him with a sledge hammer, costing him the belt and signalling the beginning of the new era.