They cannot expect from us not to thinking about multiplayer now. So IF this is a multiplayer hint I could imagine Splitscreen support since they are working on the triple screen support.
There is a lot to analyze. New front end, new frame, new uplifts, new mirrors, new door handles, new cab and windshield, new offroad parts like light rack, new bumper, new crawler/prerunner progress.
There were some pictures, and a video released a few months ago, but the truck was far from done at that time.
I don't think so, there's a whole thread dedicated to the the prerunner pickup, so there's probably some development screenshots in there, albeit its probably been changed, so it might be the first time we're seeing the release version