Metal Gear Solid 4 and other titles leaked for Master Collection Vol. 2

Placeholder buttons for Metal Gear Solid 4, Metal Gear Solid 5, and Metal Gear Solid: Peace Walker have been found on the official Metal Gear Solid website, leading to speculation that a second collection, the Metal Gear Solid Master Collection Vol. 2, is in the works. The first collection was announced during May's PlayStation Showcase and will feature Metal Gear Solid and HD Collection versions of both Metal Gear Solid 2: Sons of Liberty and Metal Gear Solid 3: Snake Eater, as well as other titles. Konami has yet to confirm any details about a second collection.