High School Musical has made tons of money for Disney and they are not ready to stop. High School Musical 4 is nowready for full product and will be released on the Disney channel in 2010. An all-new cast of Wildcast will take over as Zack Efron and friends head off to bigger and better things. The new movie will center around a cross-town school battle between the East High Wildcats and the West High Knights, production on the Disney Channel Original Movie begins later this year. Peter Barscocchini, who wrote the first three movies, will be the screenwriter for #4 and Bill Borden and Barry Rosenbush will continue as executive producers.