Hideo Kojima has confirmed Metal Gear Solid 5, finally saying what everybody expects him to say every time he's interviewed. So far, there is no information on the game itself outside of the fact that it'll run on the FOX engine, and that any FOX engine details shown so far have nothing to do with this sequel.
"About Metal Gear Solid 5, I can tell you two things. There will be more infiltration, espionage, and convincing people to do you 'a favor' like in the last Metal Gear Solid," he told IG Magazine. "I liked the idea of social interactions in Deus Ex: Human Revolution.
"Metal Gear Rising: Revengeance never pretended to be Metal Gear Solid. It's not a game about our beloved Solid Snake. It's a spin-off that tries something different. We haven't seen the last of Solid Snake, despite the fact that I wanted to let him die at the end of Guns of the Patriots."
Beyond that, Kojima could say nothing. Time to SPECULATE LIKE CRAZY! CONVERSATION TREES! SOLID SNAKE! LA LI LU LA LI LA LO LU LE LI LO LA LO!
Hideo Kojima Confirms Metal Gear Solid 5 [The Escapist]