I agree with you CGI.
Sony is the most likely of the 3 powerhouses to do something with Sega on a topic like this.
Also I think Sega has really become a reliable company for PlayStation. Most of their recent games have been exclusive to a PlayStation platform or at least on a PlayStation platform.
Yakuza has always been exclusive, Phantasy Star Portable 1 and 2, Valkyria Chronicles 1 and 2, Bayonetta and Resonance of Fate.