There's not much new here, save for the Xbox Live "Quarter Match" mode, wherein a lobby of players rotates and winner stays, loser gets back in line. (For all you young whippersnappers out there, the name refers to the good ol' days when you'd put a quarter up on the machine if you wanted to challenge the winner to the next game.) This should give the online session a classic vibe, but we couldn't find anybody to play with us while the game was still pending release. We think they were scared.
Street Fighter II' Hyper Fighting is due for release later this month; we'll weigh in with a final decision when it shows up on Xbox Live for everyone.