So I just finished talking to Xbox support live chat and I was asking about the 8 gb multi-player thing for Halo 4, he said that it is the install size to increase performance in the game and it may also help for spartan ops.
(343 needs to clarify this tho, as this doesn’t really mean anything until 343 confirms it)
Also I asked if there will be an Halo 4 console, he said that there will most likely be one as Halo 4 is a great game.
Note: It was his assumption so don’t take it seriously for now.