Tecmo Koei have officially announced Ninja Gaiden 3, releasing just one single image that appears to tease a number of things.
According to VideoGamer, the image of Ninja Gaiden protagonist, Ryu Hayabusa, hides a couple of secrets. One of which can be found in the reflection of his eye: a masked individual, perhaps hinting at Ryu's inner darkness.
The game does not have a release date nor has there been confirmation on what platforms it'll be available on - most likely the major consoles.
Source: Video Gamer