Criss Angel Tweeted a photo with Triple H and Stephanie McMahon late last night/early this morning from his "Believe" show at the Luxor in Las Vegas:
Friends #tripleH#StephanieMcMahon #WWE #SummerSlam after #BeLIEve tonight. Great 2Cu. C u tomorrow yfrog.com/ochfnfraj
— Criss Angel (@CrissAngel) May 5, 2012
Notice the left arm of Triple H, which is "broken" in storyline, is not seen in the photo. It's also worth noting that Angel used the SummerSlam hashtag, perhaps indicating a future appearance.