I'm not getting this unless it gets released on PC. First person shooters suck on consoles. The reason I never got into Halo 3 is the horrible control.
Grab a XIM if you have a 360, and pick up Halo 3, 4, ODST, and Reach for peanuts used. They are a fun playthrough, even if they are overhyped a bit by people who only play FPS on consoles. The XIM will approximate a decent experience with a kb/mouse setup.
When Goldeneye came out, console gamers were amazed, but PC gamers were like 'ehhh okay'. Then when Halo came out console gamers lost their freaking minds, but PC gamers were again 'ehhh, it's okay'.
Halo fans, don't burn me at the stake, but realize that not everyone thinks Halo is god's gift to gamers. I'll say that I think they are good to great games for consoles, but I fully believe a ton of their appeal was their 'newness' to the console crowd. I went through that with Wolf3d, Doom, ROTT, Tribes, Quake, Quake 2, Quake 3, RTCW, CounterStrike, Unreal, Unreal Tournament, RTCW, RTCW:ET, BF1942, etc/infinity. Playing Halo didn't impress me very much. It was a mediocre experience with a decent storyline and good to awesome sound/music. The enemies were relentlessly repetitive/few in variation, the graphics were poor, the levels were restrictive, and the multiplayer lacked the depth I was growing to demand (real classes, huge levels, mods, etc).
If Halo makes your flagpole rise up and salute, more power to you, I'm sure there are a plenty o' games I love that you either hate or have never seen before. And I totally 'get' the appeal of finding a new genre and falling in love with it, which can elevate games beyond their true standards. My first RTS was Dune : Arrakis (or arguably before that : Herzog Zwei), and I LOVED them and still do, even though modern RTS make them look pathetic.
But personally, I'm done with Halo, I thought 343i butchered the series with 4, I don't want to replay them even in 4K, and I don't trust them to do anything new with 5, as they're probably reading all the Halo fanboy message boards clamoring for Halo 2 to be exactly the same as it was in 2004 or whatever, along with the people hating the changes in 4 (myself not so much for the changes, but for the loss in gameplay feel). Metacritic of 99% or something might make me change my mind, but unless the MP has massive maps, destruction, varied vehicles, tons of weapons, classes, etc, or at least a good bit of those, I'm not coming along for the ride. It's not 2004 anymore, and even ten years ago I wanted more from an FPS than what they were doing.