Just tell Cena to take the gloves off and really get it in.

Tell Punk to serve up a piping hot pipe bomb special.
Tell Dolph to talk about how he really feels.
Let The Shield cut a promo telling him if he ever shows his face again, they'll be waiting.

Why not?

He's old. He's yesterday. He's, dare I saw, tired and boring now. I say let the youngins have at him for this.

The buzz around something like that would be insane, and they could always work it into a story if/when they patch shit up during Dwayne's next big movie season.