The former American Idol producer is officially returning to the show, as Deadline is reporting that the deal has been completed and the announcement will be made tomorrow. Lythgoe, who serves as a judge on So You Think You Can Dance, is not in contention for one of the Idol judging chairs, according to sources. The news could also be cause for excitement among Paula Abdul devotees: Lythgoe left the show in the summer of 2008, a year before Abdul’s exit, and some have suggested that his return could mean hers is imminent. [Deadline]