I'm pretty sure at some point they said that a "fan-favorite villain will return in a very awesome way". Personally, I'm hoping this is Discord. About the episode overall, I would give this an 8.5/10. The disappointing Sombra took things down for me- he definitely pales in comparison to Chrysalis, Nightmare Moon, Discord, and even Trixie. But there was a great amount of humor, some cool magic, and some good material for fanfics to work off of. And Spike gets a stained-glass window YAY! But seriously, they seem to add one of those every few weeks or something. Are they going to run out of room in that building? My only concern is that to me, they were hinting heavily at Twilight replacing Luna or something... I know this is going out on a limb here, but PLEASE don't take away Luna... I think if you're going to be a serious ruler, you have to know about all aspects of magic... You can't really afford to be surprised by something you don't know about. About "King" Sombra, I don't think that title is meant to be taken too seriously. It's probably just the title he forced the crystal ponies to call him... And yeah, those guards DID have cool voices. And there's probably going to be some fics about them. I AM SO READY FOR THE REST OF THE SEASON.