Why would Dodge/FCA/Stellantis continue to build a 13-year-old platform that shares nothing with their current product line?
I think we will see a replacement for the Durango, but with a different name, built on the same line as the JGC and with Hurricane engines. Except for Pursuit models into the 2024 MY, I think the Durango is dead along with the Hemi. It would be interesting to see the number of Durango Pursuits sold with the Pentastar V-6 vs. the Hemi. These vehicles are "Pursuit" in name only as many law enforcement agencies have implemented very stringent high-speed pursuit policies. Frankly, I'd be surprised that FCA would really go to the effort to build and DOT/EPA certify Durango Pursuits with the Hurricane engine. I'll believe it when I see it.
It could all be moot. It's very likely that between government mandates for EVs and the upcoming UAW demands for higher wages and the strikes that will result from them not getting their way, that the American car industry as we know it, FCA-Ford-GM, could be gone in five years. FCA will be the first to go.
I don't want to be the doom and gloom guy, but if you want a vehicle with a American V-8, buy it now. Maybe the future will prove me wrong, but I don't think so.