Wow, this was a damn good episode. S11 quality, easily.
I can't say I'm too excited for Cas to be back already, though. We were finally getting some Sam-centric episodes, and I'm afraid it'll just go back to being the Dean Show, feat. Cas for another decade.
But yeah, how about that Empty thing, eh? Looks like we get another being at God's level, and it seems like reapers know about him. Hopefully he wakes up Gabe. And I guess Death, if he really is dead.
I think it's something necessary to tie up a loose end. Like, it's been established that everything goes somewhere when it dies--even monsters go to Purgatory. So it makes sense that angels and demons would go somewhere too when they die.
Presumably other things go there, too, like Leviathans that actually die. Dick Roman is probably there.
