I'm tempted to call this a large understatement, it will definitely be a huge step forward. The 5th gen is very antiquated, this is a 2005 powertrain that had updates to the 4.0L V6 in 2010. Best I can tell, it's the last 5-speed automatic sold in the US new. The "new" 2020+ infotainment screen looks like it's from 2015, and I think it is.

The 5th gen earned its great reputation, but even in 2010 with that new body it was running several year old powertrains that it kept. The next generation is comparatively going to be a quantum leap forward, in my opinion. 17mpg with a modest amount of 4400RPM torque, going through five forward gears? That's going to be replaced with 23mpg with 50% more torque at less than half the RPM going through eight gears. Crash structure should be dramatically safer as well, and it will be a dramatically more rigid vehicle. 15 years is a long time.

I do love the 5th gen, but as has been said, "it's well past its 'sell by' date".