Honestly, the cliffhanger is all I really want to talk about. That's pretty annoying. The season, as a whole, has taken a very alien turn. If I were to guess, I'd have figured that they'd wrap this plot up. Episode 12 felt like a bit of a waste so close to the end but it makes more sense if nothing has ended.
As a side note, the Quinceria was a nice digression since it was getting dark (of the digressions, this one was a fun moment). Their money issues got fixed without any real explanation, but that's about it.
I like that Darius's son is Xerxes. That's just fun.
It seems that someone is essentially a mole because of the alien thing. I guess the logical choice is Nico with the loss of consciousness, though.