Metal Gear Solid: Rising to Shigenobu Matsuyama, control has now passed to Yuji Korekado (who's also working on Zone of the Enders HD). The news was confirmed via the Twitter feed of Kojima Productions producer Kenichiro Imaizumi.
The announcement raises a lot of pressing questions, not the least of which are these: "Joystiq, how did you spell all those names correctly on the first try and without any sort of reference material?" Please, please. We appreciate the flattery, but we're professionals. This is what we do.
With any luck, we'll have a better idea of the direction Korekado is taking the game when it's shown off at this year's VGAs.