2021 will be twin turbo, lmao just playing no clue. just had to bust your chops. I will swap for new TH when they make a huge body change or serious power upgrade. Im to cheap/poor to just swap cuz of the date it was built.
I know you were only kidding but they will likely go twin turbo eventually but they are going to milk this Hellcat thing as long as they can.
Future leaked roadmaps do show reference to a 6.2L HO
for a future Grand Cherokee so speculation is that it could be a RedEye version or maybe something in between current Hellcat and Redye versions depending on what the drivetrain can handle.
The new chassis IS expected to be lighter (built on an Alfa platform) so even if the engine isn't bumped up it should still shave a a tenth or two off the performance times.
Biggest difference will be new and improved electronics, things like a larger main screen, HUD, 360 camera, foot activated tailgates are likely.
The biggest question is timing though, right now, as discussed at the beginning, the 2020 models aren't much different. FCA is currently moving production around at some of the factories and re-tooling & training will be needed which takes times. Plus, after the chassis change, they usually focus on the top movers first, Limited, Overland, Summit models. Performance models are usually a good 9+ months later.
Again, all speculation based on small bits leaked. I feel confident that the TrackHawk will live on for a few years and I am holding off for the next chassis before upgrading but really the only thing certain is that a new chassis is coming, what engines and when remain to be seen.