Here is a thought on a remake. It has been in every single Halo game (not including Halo ODST), Halo Wars and Halo Reach even had it, and the both of those games had little to do with the first Halo games. Although, Reach did sort of lead us into Halo 1 but you know what I mean. Anyways, Blood Gulch, Coagulation, Valhalla, and Hemorrhage (and Blood Gulch again in Halo Wars). It has been recreated 4 times now, why not a 5th time for Halo 4? I do see the point that it's an all new trilogy but Halo Wars was a whole new story as well, and a couple years in the past as well.