^ Re. Raven: You made an observation that "if you look at the picture Raven is in, ALL of the other characters are playable." I agree w/ your opinion that this probably makes her more likely to be playable. Also, her moves are likely very similar to some of the more magically inclined MK9 characters...MK9 had a lot of them (Quan Chi, Noob, Ermac) and did that very well; I don't see them shying away from the opportunity to add a similar playing character here.
Re. Alt Skins: I've been checking out the Red Son story in preparation for the game. It's a pretty cool story. If you haven't seen it check out this youtube motion comic: link
Anyone have any wish list as far as alternate character skins?
classic costumes for all
new 52 for at least Green Lantern, Aquaman, and catwoman
bizzaro superman alt for superman
supergirl alt for power girl
john stewart alt for hal jordan