[Stardust]

Dana has already said Brock is under contract, and in no way can he appear for any other organization in anyway.
Also im sure as hard as they have worked to seperate him from his WWE image there is no way Dana would allow this to happen.

Brock could appear, and based on his contractual limitations, may be able to participate in WM. I'm not saying wrestle, but he certainly could have a role in the show. We seen it every week for over a year with the guest GM's, where sports athletes, celebrity's, and even politicians participated and even were physical in some vignettes. So, could Brock participate, yes. Would he wrestle at the show, not very likely.