Hideo Kojima has reiterated that he doesn't want to make Metal Gear Solid games for the rest of his life, as part of a thoughtful chat with Game Informer. As a matter of fact, Kojima doesn't want to make games for the rest of his life full stop.
Kojima has been looking for a replacement franchise overlord for a while, seemingly. "I understand what you're saying," he began, when the site drew a comparison with Ridley Scott's handing the reins of the Alien IP to James Cameron. "At Kojima Productions, if our studio were a kitchen and the head chef changes, then it changes the flavor and it changes. The world franchise usually becomes more open, as in Alien.
Full article can be found here: http://www.totalxbox.com/71997/kojima-wants-somebody-else-to-take-charge-of-metal-gear/"To be honest, I've actually wanted to do something similar just to change it. I don't know if the Metal Gear brand sometimes is a bit heavy to carry. The franchise is difficult to handle. But so far I've had no success [passing the torch].
"Metal Gear Rising [Revengeance], fortunately that was a spin-off so that went well," Kojima noted. "Ideally I would like to step out from the Metal Gear franchise as a producer and dedicate myself to other games. So far that has proven to be a bit difficult. Alien is a very successful example [of a new director coming in]. Unfortunately in our case it's more like Terminator, that once Cameron steps out of it there was kind of a mess."