I'm thinking that Cena's going to "shoot" HHH with a machine gun or something while wearing warpaint.
As for RVD teaming with Carlito, it seems as if WWE continues to act as if two wrestlers have no issues anymore due to them both being face/heel now, much like with HHH/Austin, or Jericho/Eddie in 2000 when it was Eddie who beat Jericho for the European title the night after Wrestlemania.