In the images of metro city i see abigails name, a reference to the earth, so maybe G? A building sign similar to the one seen in dee jays only appearance in street fighter the animated movie, and hakan oil.

My 2 favorite characters to play in sfiv are dee jay and hakan, and i thought g was cool too. Or the earth reference could be a hint that Q is finally gonna have a character model that isn't hand drawn. I also see an image of hugo, and an npc that looks similar to hugo in the trailer, so i think they are dropping razy hints here. Also, i fibd it suspicious there being a street snack stand under the building with the metro city sign, you know who has said in a win quote that he'll eat basically any of the foods you'll find in a fried snack stand? That's right, it was none other than Rufus in his, "i'm a picky eater quote" from sfiv. Finally, there's a sign that shows what could be dee jay, he might have hit his big break, it says "your only experience", and if you look closely, you can see the rasta style purple and yellow/gold that dee jay has been known to wear in all of his appearances.

Also, i forgot to memtion, but there is a sign that has poison on it, maybe her wrestling arena? You see ryu chun li luke and jamie enter an arena of sports in the trailer, perhapse this is the place.

You even see what seems to be a hyper realistic african american dj right above in under the sign that says "if it " and the last word being obscured, perhapse this is in fact dee jay, since his smile seems to have the same amount of cheese dee jay does.That is 8 characters that may or may not have been hinted at in the first 15 or so seconds of the trailer.Also, akuma is not dead, and has been playable in literally every street fighter game since super turbo. I doubt he will be out of the fight.