I'm hoping for some type of radar altitude to allow for constant "HAT" (height above terrain) flying.

Also, vehicle (or subject) following would be great.

Also, interchangability of cameras so that you're not saddled w/cameras that become outdated much faster than drones. Wheat77 is concerned about not buying drones now, but I see faster replacements of cameras as a bigger problem. We need more camera flexibility on the lower-priced drones. Price the cameras separately.