Team Ninja has officially announced that Ninja Gaiden 3 will be releasing in March 2012 for the Xbox 360, PS3 and PC. Earlier, they had just given us a date of 2012, having confirmed it now fully. The Wii U version of the game will release later next year.
Ninja Gaiden Sigma will be releasing on the PS Vita in February as a launch title of the system. Looks like Ninja Gaiden fans will be seeing a lot of action next year.
Stay tuned for more info.