If you are hoping for Super Street Fighter IV to release on PC, than we are very sorry to inform you that this is not gonig to happen, and reason is piracy.
Yoshinori Ono, Series Producer said that due to high piracy with the PC version of the original Street Fighter IV, there are currently no plans for a PC version of Super Street Fighter.
Ono further added that the original game title in the series was at one time one of the best seller game all around the world but at the same tile it was number one piracy.
However he didn’t rule out the PC version of the game completely, if they can find out some way controlling the piracy throught a powerful copy protection solution than PC version status can change.
Super Street Fighter IV Arcade is slated to come out in December 2010.