http://www.n4g.com/ps3/News-295633.aspx

Some translations of the text:
- It will be an upgraded version of Ninja Gaiden 2 (not a direct port)
- Set to release in autumn 2009
- The magazine will be reporting new elements in coming issues
- Producer and director: Yosuke Hayashi (From Sigma)
- Development: Team Ninja

New features in the PS3 version:
- New Weapon spiked hammer "Genma"
- New giant bosses not in the 360 version
- New playable character - female ninja Ayane