With the exception of adding loopdeloops, etc for the Summit monster trucks, odds are that the devs responsible for making maps and assets haven't really had a heap to do for TC1 since it released in late 2014. A 2018 release for TC2 means they get around 4 years, which is less than TC1, but they already have a proven game engine and a whole bunch of assets (i.e. trees, buildings, signs, etc) that could be reused to some extent. So it's not impossible to rule out a completely new location, although I don't think I'd mind if the ol' USA were still accessible (in addition to a new area).
The single biggest problem with interior camera views imo which sadly was never addressed was the built-in fidgeting both of the steering wheel movement and the camera view. When my own head and steering wheel moves in the real world having the game do something else breaks immersion and can even make me feel ill after a while. If they add VR support for TC2 then they would absolutely have to turn that off.
When I gave up trying to make it drive like a sim and just grabbed a gamepad and 3rd person view it wasn't too bad in the end, especially with those online police chases.
And for @Ozzmcom's sake they need to sort out the upshift sound. :)