If anything makes the 2020 worth more, I'm banking on Ford updating the design for 2021. Just a SWAG. A Gen3. I keep hearing rumors about a powerstroke engine option...
Regardless, I just traded my 2014 in because I got a heck of a deal due to the China Virus crashing the local economy. Time will tell.
Any rumors about a Powerstroke in a Raptor are not true. Raptor will always be a gas-powered truck.