The only other rumor that has been in the old threads is that a "new AV" may be coming in a smaller format such as on the Colorado frame and not a Suburban like a true AV. With all the concern over gas mileage I doubt if GM will release another 2500 AV, closest you may get is a 2500 Suburban or Silverado. From recent articles the High Desert Silverado is for 1500 trucks. I still think your salesman is showing press release photos of the High Desert Silverado and just assumes it's an AV. There is a link to some auto show unveiling of the High Desert in the older threads which will show all the features of this option package too. Were the photos labeled as a 2017 AV?