This is something that I would love to hear more opinions on!
Who do you think is Twilight?
I had suspicions of Andrew because of some of the things that Twi said. Some of his statements/actions came off as a bit quirky. And since Andrew has costumes like Dracula and a underlying sort of wish to be a super-hero or villain (as long as he's super-something), it kind of made me think.
Before I saw that he had skin I wondered if it could possibly be Warren since he is apparently back from the dead (and badly done imo! Sorry Joss but I didn't much like that twist with Amy - just being honest) and since Warren and Amy are tied to the military guys that Twilight is with.
Also! Whatever happened to the Warren-bot from S6? Another random guess.
Then I wondered if there was any sort of possibility it could be Jonathan back from the dead. I know! That's a really 'out there' thought but it could happen. Twilight obviously uses either tech stuff or magic to fly like that so he could easy be someone with normal strength and abilities just using other stuff to help him. Of course Jonathan is only like 5'2" (haha he's my height) so there's that too. But hey it could be a glamor to be taller... maybe?
Oz anyone? I'd heard rumors about the possibilities of our fav werewolf returning in the comics. Just another thought about someone that hasn't been there yet.
Lastly there's Riley. Which would make sense in some ways but other ways it wouldn't either. I don't know.