Metal Gear Solid: Master Collection Vol. 2 will contain Metal Gear Solid 4: Guns of the Patriots
Earlier, Konami announced Metal Gear Solid: Master Collection Vol. 1, which will be released in October this year, but discussions about Metal Gear Solid: Master Collection Vol. 2 have already begun on the web and it seems that we have the first details - the collection will contain Metal Gear Solid 4.
Here's What We Know
A Twitter user with the nickname Nitroid conducted an investigation on the Metal Gear website and noticed a strange updated Metal Gear timeline from Konami. The main finding is that Konami's edited graphics contain several inactive buttons for old games that indicate the presence of new pages, which indicates a possible re-release of Metal Gear Solid 4: Guns of the Patriots, Metal Gear Solid: Peace Walker and Metal Gear Solid 5 as part of the Master Collection Vol. 2.
Source: Eurogamer