That is an incredibly hokey-looking website, lol. Sites like that just spread fake information for views to collect ad revenue.
I know the Durango will soldier on as is for another year or two. I haven't heard that the Durango Hellcat will be back next year, it was supposed to just be back for 2023, but we know how that goes. I'll ask some of my people.
Speedy is right about CAFE standards, they go off wheelbase and a few other things, that's why you see trucks and SUVs generally getting a bit bigger. As they're rated differently that's what has allowed the TRX to keep the Hellcat for 2024.