Me, Anotak and Polarity are working on SSF4AE modding. Developments are going really fast rn, and Anotak already got tools going for editing almost everything in the .bcm. I’m kind of not that involved with that because I’m not as good at actually reading hex apart from areas I already know i’m just going “oh cool what does that do oh shit”
There’s already progress on adding and changing cancels (the cancels are what it cancels to, so you still have to add in cancels for moves that don’t usually have it.) as well as some early stuff on meter editing, what motions a move uses, what inputs it uses etc.
So far, SSF4AE is a lot easier to mod than vanilla, but that might just be because Anotak’s on board again.
BTW: SSF4AE Koryu is already in progress: http://www.youtube.com/watch?v=Ui3DTYHjjk8