The upgrades with the cameras and wheels somewhat expected, but nonetheless good they wanted to improve upon Curiosity (especially the wheels). The 2 items I'm the most curious on (3 if you count MOXIE I suppose) are the helicopter drone and landing site selection, I want to hear more on them although I expect the landing sites will be mentioned another day.
Just a spacecraft under construction, bound for Mars, that I get to see in person now and then.
NASA's Mars 2020 Mission Performs First Supersonic Parachute Testhttps://www.jpl.nasa.gov/news/news.php?release=2017-294
in fact, I don't remember JPL test flying Curiosity's parachute. they only did wind tunnel tests, IIRC
Current status of the Mars2020 sky crane assembly at @NASAJPL