UPDATE: The laptop is now official and available for pre-order. There are two JZ models, the G750JZ-DS71 and G750JZ-XS72, as well as models with the GTX 870M and 860M.
Asus has refreshed the G750 Republic of Gamers (RoG) 17.3-inch gaming notebook series by adding the next-generation Nvidia GeForce GTX 880M graphics card to it.