The game is set to take place several years after Metal Gear Solid 4: Guns of the Patriots and is a spinoff that is “not part of the main Metal Gear Solid series”. Details on the game’s specific plot have, sadly, yet to be unveiled, but Raiden appears to be a lone warrior fighting against various Private Military Companies while following the samurai way of life.
Unfortunately, Konami have note yet announced a release date.
Teasers have at various points shown Raiden’s body with portions of the body armor missing, and in his Metal Gear Solid 4 armor with sword drawn, crouching on the back of what appears to be Crying Wolf. The E3 2010 trailer depicted Raiden fighting a humanoid enemy equipped with a cybernetic exoskeleton similar to those worn by Metal Gear Solid 4’s Beauty and the Beast Corps.
Matsuyama also hinted that Raiden’s past as a child soldier may be elaborated on, and that his personal weaknesses as a human, such as his resolve, will be explored. This will be awesome to see Raiden as a child soldier.
Konami told the press that they had to change from human enemies to cyborgs to avoid censorship issues in Japan.