The PlayStation Vita version of Konami's Metal Gear Solid HD Collection will not include MGS Peace Walker.
The publisher confirmed this to Eurogamer, pointing out that early press for the SKU never mentioned Peace Walker as being part of the package.
On the plus side, however, the game will include both the original Metal Gear and Metal Gear 2 as were released in Japan on the ill-fated MSX2 computer.
Should it be highlighted that MGS Peace Walker is already available as a separate download on PSN? Yes, it probably should.