On April 8, 2008, Disney Channel Worldwide President Rich Ross stated that script was being written for the fourth installment of High School Musical. However since Zac Efron and Vanessa Hudgens' characters have graduated and headed to college, they will not be reappearing, Hudgens has confirmed this via Twitter. The filming will be done by choreographer and director Jeffrey Hornaday and will debut on Disney Channel in 2010. Casting is underway for the fourth installment, which is set against the cross-town school rivalry between the East High Wildcats and West High Knights.
