My Pretty Little Liars Theory

WHO IS A?

WHO IS A? Theory part 2
Okay today people in America will find out who A is. I've saw clips and clues, I've put together another theory for you guys to read! Anyway don't read of u don't want spoilers, however it is okay if your on season 5 or 6. Also, I live in the UK so I don't know who A is yet and I'm finding out tomorrow. Therefor please don't blame me if I guess right because it IS a guess I swear!!! Anyway I'll get started:
Okay. I've gathered some evidence that has been posted AND confirmed about tonight's final. There has been three posted so far:
1) A has been in more than 5 episodes
2) A is younger than 50
3) You will know who A is when he/she is revealed
So first I thought, well let's think of all the characters who have been on the show not for long. So I thought maybe CeCe, Maya, Bethany? However it can't be any of the liars because they are all totally unaware of who A is, until it is revealed to them all in the episode. It could ALSO be a man not just a woman, those three were just names that popped into my head. I have an idea it could be Maya because I looked at a clip of the liars reactions!
Hanna: looked confused
Spencer: looked surprised
Aria: looked curious
BUT Emily: looked shocked and almost traumatised
Because of Emily's reaction to A I think it was Maya! She looked as if she was very VERY surprised! And like she hasn't seen the 'person' in a while, almost as if 'she thought A was dead?' This is why I think it's Maya. If you have forgotten Maya or don't remember who she is, Maya was Emily's first girl friend way back in season one! BUT then Maya was supposedly 'killed' by A? I don't think so... Due to Emily's reaction I thought it would be Maya because Emily would have a 'traumatised' look, if you saw your old dead girl friend who you loved and tried to kill you and your friends, how would you react! However I don't know why Maya would be A, and what reason she'd have to be A. So then I go back to my first theory, CeCe could be Charles and Charles could be A. If you read my Transgender theory you'd know what I mean. BUT I don't think it's CeCe AKA Charles is A, I think CeCe is read coat who is working with A. Therefor all the Liars are shocked AS when they (might) see Charle's face, they'll see CeCe's face without a wig! If that makes sense...
Anyway that's my second theory on A. For PLL fans in the USA or any country that's watching it tonight: enjoy tonight's episode! For UK fans or country's watching tomorrow: Hope you enjoyed my theory and we'll just keep guessing till tomorrow! URR I can't wait till tomorrow! PS I'm avoiding Instagram till tomorrow as I don't wanna know who A is till I can watch the full episode tomorrow. Okay bye guys!!!
Love Katie xox :)