4J Studios, the Minecraft for Xbox development team, has confirmed that texture packs will be supported in the next version of Minecraft for Xbox 360 (TU12). How texture packs will be implemented and whether they will support PC texture packs is still unknown. If the Xbox edition did support PC texture packs, this would instantly bring more of an identical feel for players that both play on the Xbox and use custom textures on the PC. However the problem lies in getting the texture pack installed. Do they have to be downloaded and put onto a flash drive for installation somehow? Or will they have to be downloaded from Xbox Live meaning 4J would have to accept texture packs and upload them to Xbox Live as DLC? I guess we wait until 4J either announces how it works, or for the update itself. Either way, texture pack fans will be able to enjoy custom textures on their Xbox.
Source: Twitter