I too expect many changes before that beast hits the streets... In two years, there are going to be more people rethinking their need for large SUV rides that there are now... Resale values for existing, and future, large SUVs will most likely keep most of these vehicles out of the middle and lower income driveways. Granted, technology will also play a part in making these new breed of SUV squeeze even more miles out of every gallon, but that too will be a feature that gets charged even more for, in the near future.
Sorta funny.... 20 years ago, the bigger the vehicle, the bigger the price.... Now, or very soon, those little "slippers of a car" will cost more than the bigger luxury quad-cab pickups!