It seems like the exact release date of Metal Gear Solid V: The Phantom Pain has been accidentally leaked via recent article from The Guardian. You can check out the snapshot of the article below, it says: “Metal Gear Solid: The Phantom Pain is due out on PS3, PS4, Xbox 360 and Xbox One on 17 March, 2015”
After the goof up, the article has been changed and it now reads: “early 2015”. This March 17, 2015 date looks pretty legit considering the fact that the day falls on “Tuesday” i.e day when most games releases in North American and Hideo Kojima himself has confirmed “early 2015” release window.
Part of the mysterious twin game projects that form part five in the Metal Gear franchise, Metal Gear Solid V: The Phantom Pain continues the complex saga of the Snake soldier line, connecting storylines from Metal Gear Solid: Peace Walker, Metal Gear Solid: Ground Zeroes, and the rest of the Metal Gear timeline.