Yu Suzuki has a new role as Executive Producer and Advisor for Tokyo-based developer Premium Agency. Apparently in addition to advising them on mobile games, he's also going to have an advisory role in a new, as-yet unannounced fighting game for Kinect.
The first thing I thought of when I read this was a possible release of Psy-Phi, Suzuki's touchscreen arcade fighting game that saw only a very limited test release. At the GDC event honoring him this year, he said that Psy-Phi ultimately didn't get a wide release because the touchscreen interface caused peoples' fingertips to eventually "burn" due to the vigorous gameplay that was necessary. But, he said, it could probably be done with Kinect.
Well, seeing as this is a new and unannounced fighting game from a developer outside of Sega, it's probably not Psy-Phi, but I still hope that game will see the light of day in some other form. In the meanwhile, let the speculation begin for what it might be...