Konami has confirmed the Metal Gear Solid Legacy Collection that includes the first two MSX Metal Gear games, Metal Gear Solid + VR Missions, Metal Gear Solid 2: Sons of Liberty, Metal Gear Solid 3: Snake Eater, Metal Gear Solid: Peace Walker, and Metal Gear Solid 4: Trophy Edition. The official site also includes a layout of the collection and some neat wallpapers.
Source: Konami.jp