Beware of spoilers... those fluffy winged creatures are back..
7.21 Reading Is Fundamental
CASTIEL AWAKENS FROM HIS COMATOSE STATE — Meg (guest star Rachel Miner) calls Dean (Jensen Ackles) and Sam (Jared Padalecki) and tells them Castiel (guest star Misha Collins) is awake and talking. Meanwhile, a teenager named Kevin (guest star Osric Chau) gets hit by a bolt of lightening and is turned into a reluctant prophet. Sam and Dean believe Kevin holds the key to defeating the Leviathans but must fight off two Archangels who want him for their own purposes. The episode was written and directed by Ben Edlund. Source KSiteTV
Osric Chau is no Mike Cheng, but you may know him as the young monk in the movie 2012.
So, who are the two Archangels in this episodes? Start making your wish list, but it won't help, coz the episode was writted and shot. But hey, we may get some new angels? As long as I get THE angel CASTIEL, I don't care!
Watch this space!