High School Musical will return for a fourth semester – but without the franchise's original stars Zac Efron and Vanessa Hudgens.

A new movie will hit the small screen in 2010 which, according to a Disney studio statement, will feature a love triangle "set against the cross-town rivalry between the East High Wildcats and West High Knights."

Peter Barsocchini, who wrote High School Musical 1, 2 and 3, is back in as screenwriter, while Bill Borden and Barry Rosenbush will once again executive produce the project.

Troy and Gabriella in HSM3

In a recent interview, Vanessa suggested that Troy and Gabriella's stories had been wrapped up with High School Musical 3: Senior Year.

When asked whether the old gang would be returning for another HSM installment, she said, "I think that's it. I mean, it's senior year.

"You can't do high school again unless you flunk and the movie wouldn't have the same name if we went to college."