After seeing inside the Raps helmets, I know even less about them. At first I was like "a-ha, they really are just robots after all, so they probably really are humans from the future or something". But then they showed the glowing sphere and I'm right back to square zero.
So what happened with Broussard? He decided to stay in the block? I'm not sure what his goal was, especially if there's no one left there to save. (Are they saving the character so he can magically pop up and save them in next year's season finale or something?)
I did like the Nazi analogy, and it was fun seeing all those ships come in at the very end. I kept waiting for Snyder to betray them, but he finally had me convinced by the end. Silly me, I don't know why my little human brain wasn't aware enough to wait for the final scene before deciding if he was a real ally or not.