The shows first episode of the season is tomorrow at 9/8 central. From what I hear, in the premiere 40 demons escape from hell and Sam and co have to figure out how to send them back, which leads to a lot of drinking I can't wait until tomorrow night!
That "ender" thing looked freaking cool, like a larger, scarier Death Eater from the Harry Potter movies. I bet it's brought back as part of the larger storyline, maybe the one involving Alan since the Devil said something about it destroying "lost" souls.