User blog comment:KillRoy231/How did you feel about O Brother Where Art Thou?/@comment-1975828-20151231031042

This is one of my favorite episodes of all time. Mark Pellegrino's acting is as brilliant as ever.

I doubt Amara is dead. God and his four archangels failed to kill her, what can an army of lesser angels do?

I wouldn't be surprise if Michael and Lucifer sided with the Winchesters, since Amara is like "the enemy of my enemy". Basically every species in SPN considers her a foe.