High tech Kojima ad in Famitsu points to MGS5

[Rainbird]

Or maybe it's a new MGS game on the PSP. MGS4 is just a year old, and with all the time that took to make, I can't really imagine that Kojima would have a new Metal Gear ready for a reveal already, unless it was on a system which doesn't take as long to create a game for as a HD system.