Despite former Team Ninja boss Tomonobu Itagaki having previously stated that Ninja Gaiden II would be the final entry in the series, in an interview published today on Kikizo, the new leader of Tecmo’s elite Team Ninja development studio, Yosuke Hayashi, revealed that they do have plans to add another title.

“What the gamers are looking for is going to be the next chapter – the future of an outstanding series. We feel that we’re in a position of being able to make that call… That calling is already there – we feel it,” Hayashi stated.

In addition, he revealed that they are thinking of shipping the sequel, or whatever, for as a dual-platform, meaning for both the 360 and PlayStation 3.

Hayashi stated that after Sigma 2, rather than do a 360 version of it, “we’re going to have to push ourselves to the next level, and we are better off giving both audiences an entirely new game. ”

Despite trying to keep the bag closed, the cat been roaming around for a while now, and even if it was revealed in a recent issue of Famitsu. The game hasn’t been officially announced yet by Tecmo, that was until GDC.

When standing in front of a area filled with game journalists, director Yosuke Hayashi officially announced that Tecmo is busy working on the PS3 version of Ninja Gaiden II, Ninja Gaiden Sigma 2.

Sigma 2 will feature online co-op play, with Ryu being able to team up with either of his female companions - Ayane from Dead or Alive, and Momiji from Ninja Gaiden Dragon Sword. However, Hayashi explained that online play would not feature player-versus-player combat.

He also revealed that all the extra content in Sigma wouldn’t be made available for the 360, but he admitted that Team Ninja was also considereng downloadable content for the game on the PS3.

[Tecmo announces Ninja Gaiden Sigma 2 for PS3 (officially) via ArsTechnica]