Dubbed Metal Gear Solid: Peace Walker, the game is due out in 2010. Set in the 1970s, it takes place roughly ten years after Metal Gear Solid 3, and follows Big Boss along with the formation of Outer Heaven.
"I can say that this is the true sequel of the Metal Gear Solid franchise," explained Kojima. The creator added that he will produce and write the game, clarifying that it's "not a spin-off and not a side story."
A trailer for the title added that it's the legendary "missing link" in the Metal Gear saga.