WWE is working on a new animated crossover film with Scooby-Doo. PWInsider reports that early work has begun on the sequel, which is currently being written. The first one, Scooby-Doo! WrestleMania Mystery, did well on DVD and is currently airing on Cartoon Network.
The second film is not yet greenlit but if it gets the go-ahead, the plan is to have it ready for 2016.