User blog:Krable/Could it be possible that Meg with some other demons ressurected Castiel?

We now know that Meg will also appear in the episode "Born again identity" and she is seen in a picture sitting in the backseat with Castiel and Dean.

Could it be possible that she and possibly some other demons found a way to ressurect Castiel so that he can help defeat the Leviathans, (because we know that the Leviathans got big plans for the world and the demons are probably just as eager to get rid of them as Sam and Dean are) Any thoughts?