Ryan Murphy Confirms Glee Cast Will Graduate

There’s no dodging the issue — all of the Glee characters who were juniors this past season will graduate from McKinley High in May 2012, with their portrayers (presumably) leaving the show.Glee creator Ryan Murphy held firm to his previously revealed transition plan, saying that for original characters such as Rachel, Finn, Quinn and Puck, “This next [season] will be their senior year, and then that [they] will graduate.”
Matthew Morrison and Jane Lynch will be staying on the show to teach the kids that are left behind that we probably won't love as much.