Board Thread:General Discussion/@comment-6747658-20130401084750/@comment-98.19.149.12-20130421160836

^

One other piece of "evidence" I forgot to mention: Old Boy's other codename was "Devil." An old Project Ogre (MGS5) related Tweet from Kojima stated that the game would deal with an "oni," or the Japanese equivalent to a devil or ogre. Old Boy seems to fit in quite nicely with that idea and the overall theme of the game.