They're collaborating on Castlevania: Lord of Shadows and have Metal Gear Solid: Rising in the cooking pot, so what could be the mystery game?
Rumours have long whispered 'Zone of Enders 3' and it could be it - it'd certainly have a lot of people screaming like little girls with glee. Metal Gear Solid: Rising got a proper unveiling by Hideo Kojima last night at Microsoft's E3 press event.
Maybe they will unveil this third game at tonight’s Sony conference?
Source: VG247