no kidding, they already do now, a limited 4x4 supercrew is at 64K. I can see these pushing close to 70...I'd just opt for the raptor at that price point.
The 4×4 version of the truck is rated quiet a bit lower at 9,300 lbs of towing and 1,270 lbs of payload.
2019 Ford F-150 Gets the Raptor Engine and Dual Exhaust For Most Power in the Class (News) - The Fast Lane Truck
Might as well just get the Raptor with those towing numbers if you need 4x4.