Capcom in the official blog has announced that the long awaited 2012 update that was released on consoles in December will be coming to the PC version of Super Street Fighter IV: Arcade Edition in February.
According to the blog, "For all of you who have been waiting patiently for your PC version of Super Street Fighter IV Arcade Edition to receive the 2012 update, we have some news for you. Our development team has been cracking the whip on this project, and are aiming to have the 2012 update ready for you all by the end of February. We will have additional updates in these upcoming weeks. so keep an eye on this space for more info."
The PC version of Super Street Fighter IV: Arcade Edition was released on the 5th July, 2011.