Ok, when I first heard about Peace Walker being included in the Metal Gear Solid HD Collection the first think that came into mind "will there be online support"? Another question rumbling in my brain was "If there's no online, will they just remove multiplayer in general?" which is a big issue since Peace Walker is basically Monster Hunter and a huge amount of the game's enjoyment relies on multiplayer.
Well my worries are over since Hideo Kojima posted on his Twitter account that you will be able to play in game with up to 3 other people online. The tweet also mentions that the game will be running at a full 60 frames per second and that character dialogues will pop up at random during loading screens.
Aside from Peace Walker, the HD Collection will also include Metal Gear Solid 2: Substance and Metal Gear Solid 3: Subsistence means that the original Metal Gear and Metal Gear 2 will be included as well.
4 people can co-op and it is 60 frames. During loading, characters’ dialogues pop up at random. http://yfrog.com/h34uvzrj