So, to recap RAW, Rey Mysterio wins the tournament and gets handed the damn spinner belt (I wish they would have a new design already), but then HHH comes out and as his first act as GM, makes a match between Rey and Cena for the title as the main event. Fast forward to after the main event, where Cena wins lol. "Cult of Personality" begins to play (and I mark the **** out, you'll know why in a minute). Cena looks perplexed as to who's music this could be, and the crowd doesn't know how to react. Then, all of a sudden, CM Punk shows up at the top of the ramp with his title belt. He walks down the ramp, gets in the ring and stares down Cena. Cena raises his belt to show he is the champ now, to a mixed applause. Punk raises his belt to a roar, and claims he is still champ. End show.
I think we have our SummerSlam main event people. But just the fact that CM Punk came back, and to his heel ROH music no less, further proves this could be a reincarnation of "Summer of Punk".