I think a soundtrack is very likely. I'm a bit surprised it isn't being released to coincide with the Arcade release, but maybe it'll be released around the time of the console versions. I quite like the direction they're taking with this one. The samples have been pretty good so far and this interview is quite inspiring:
"The best way to describe it would be to take the essence of the Street Fighter II soundtrack and get that nostalgic feel to it. When you talk about Street Fighter, people tend to have their own ideas of what Street Fighter II is, and if the game isn't directly in front of them when they're talking about it, they have all sorts of different memories that they go to. For instance, they picture Ryu's sprite looking much cooler than it really is--although they looked great for the time!
The music too, it's great, but people probably remember it being a lot better. What we want to do is match people's happy, nostalgic memories of it. Their idea of what Street Fighter is this big [raises hands in the air and places them around his head], and we want Street Fighter IV to be this big [spreads arms as far apart as possible]! We're going to make the game as good as they remember it, and we're going to use modern, 2008 technology in order to do it."
Anyone know who is composing it?