The release of Tecmo Koei's "TPS" Quantum Theory appears to have hit a rough patch, with the publisher-developer announcing that the game will not make its scheduled March 25 release date in Japan due to quality reasons.
As of right now, per Tecmo Koei's announcement, the Xbox 360 and PlayStation 3 third-person shooter is listed a "TBA" with no new firm release date. That delay applies to the North American release date as well, Tecmo Koei reps confirmed, meaning that the previously penciled in March release window is now unlikely.
Again, based on our own hands-on time with the game at Tokyo Game Show, more quality can't hurt.
Tecmo Koei also issued a similar delay to the PlayStation 3 role-playing game Trinity: Souls of Zill O'll (aka Trinity: Zill O'll Zero), citing quality concerns.