Since the rumours about the inclusion of Dee Jay and T. Hawk in an updated SFIV, the internet has gone wild with speculation surrounding the game with hope for new content. As time passed, a compendium of details specific to the update; known at the time as "Street Fighter 4: Dash", was listed on numerous sites and many believed the information to be true. With a distinct absence at the recent Tokyo Games Show, Capcom have decided it's time to unveil some long sought after information regarding 'Super Street Fighter IV'.
Although nothing has been set in stone as of yet, Capcom of Japan have released a teaser trailer hinting towards the release of new information within the next few days. The 29th of September (this Tuesday) is a day to watch, so keep your eyes peeled for more news tomorrow.
Teaser site: http://www.capcom.co.jp/newwarrior/index.html