We will see the introduction of a recurring character called Malachi. An angel who is amassing an army for a war, and killing those who refuse to join.
@AccioAngels he wasn't in town. He's not in this episode. But, he's doing some press in a bit so stay tuned!— Suzanne Gomez (@Chico6) October 2, 2013
(not sure if this is 9x07 or 9x08, haven't really looked into it much yet.)