Spy photographers spotted the a more exposed 2014 X5 (F15) prototype with only a few camouflage left. This reveals the bumper design with integrated air curtain vents, tail lights, square-shaped angel eye head lights connecting to the larger kidney grilles, and a gap in the front fender camouflage for a front fender air vent. At launch time, this vehicle is expected to weight less and have pedestrian airbags, iDrive Touch Controller System, and a modified version of the F10 5 series chassis. The vehicle will go on sale in late 2013 to early 2014 as a 2014 model.
Source: Bimmerpost
Looks tame in design incomparison with the current model.