Johnny Depp might not be returning as Captain Jack Sparrow, but Disney is not about to throw out the super-lucrative Pirates of the Caribbean franchise with him. The challenge the studio will face, though, is populating their reboot movies with characters that are as beloved as those from the earlier films, such as Keira Knightley's Elizabeth Swann, Geoffrey Rush's Hector Barbossa and, of course, Sparrow himself.