Microsoft's latest Xbox One X console was introduced at E3 2017 to much fanfare. To see more of what's in store for Halo this year, be sure to check out the official Summer Celebration post that discusses new action figures, the upcoming HALO: Retribution book, matchmaking changes for Halo 5 and more.
343 Industries has announced that Halo 5 will be updated to support true 4K resolution with the release of Xbox One X in November.
More details about the Xbox One X features will be revealed at a later date. Halo 5 now features dynamic resolution scaling (up to 1080p) to ensure that it runs at 60 FPS. Much like the recent addition of Call of Duty: Ghosts to BC, this is all about giving fans options. The long-rumored Halo 3: Anniversary remaster has also been debunked, too. All of these titles will allow LAN play on Xbox One, even being possible to include play between Xbox One and Xbox 360.
In other words, that's all we know: Halo 5 will not be remastered or re-released for Xbox One X. Instead the existing game will simply be updated to support 4K graphics on Xbox One X only. In a very welcome move LAN play will also support connecting both Xbox One, and Xbox 360 consoles. This is about as good as anyone could hope for, short of concrete news about future games. Furthermore, once these games launch on the program, every single Xbox 360 Halo DLC map pack will be made available for free.