Brian Griffin Removed From Voice Cast List For Family Guy Christmas Guy Episode

A week ago, Entertainment Weekly reported that Brian Griffin would be returning to Family Guy in the Christmas Guy episode. Of course, this news spread quick and far across the Internet. However, the only substantial proof the EW offered up was that Brian Griffin appeared in the voice cast list for the episode. Well, guess what? Fox has released a new voice cast list for this week's Christmas Guy episode, and Brian Grffin's name has been removed from the updated voice cast list. Here's the new voice cast list. Voice Cast: Seth MacFarlane as Peter Griffin, Stewie Griffin, Quagmire, Carter Pewterschmidt/Younger Carter, and Biker; Alex Borstein as Lois Griffin and Carter's Secretary; Seth Green as Chris Griffin; Mila Kunis as Meg; Mike Henry as Cleveland Brown; and Patrick Warburton as Joe. So, what does this mean? Had Fox just previously forgotten to update the voice cast list to reflect that Brian Griffin was no longer part of the show? Or did they accidentally reveal he was part of the episode before and are now trying to cover it up?