If an ESRB listing is to be believed, Koei's futuristic combat racer, Fatal Inertia, could eventually return to its point of origin. Starting life as a PlayStation 3 exclusive, the game was eventually met with a lukewarm reception on the Xbox 360 in 2007. Prospects of a PS3 release were temporarily wipEd out after Koei delayed it "indefinitely" due to Unreal Engine 3 issues.
The mention of "Fatal Inertia EX" for PS3 may signal an end to these issues and hint at the arrival of an updated, possibly more EXTREME version of Koei's non-dynastic hoverfest. Our requests for information from the publisher have thus far crashed and burned.