Koei repackaged the two Warriors Orochi games and added a few characters like Sanzang Fashi who attacks with her sleeves to make Musou Orochi Z for the PlayStation 3. The game came out in Japan in March, but it won’t cross the Pacific.
Since the Warriors Orochi Z wasn’t at E3 I spoke to Koei about it. At one time Koei planned on localizing Musou Orochi Z as Warriors Orochi: The Collective. A representative from Koei confirmed that the rumor Siliconera discovered was on the mark, but plans for the project have been shelved. Warriors Orochi: The Collective, Musou Orochi Z, Warriors Orochi Z or whatever name you know the game by is stuck in Japan, which makes Musou Orochi Z the first Omega Force developed Warriors game not to get an overseas release.