There are many terrain / path options right now (I think around 10 off hand(?)). But yes, there are only 3 decorative objects. I wanted to focus mainly on the systems for now because they are the most difficult to program. Objects are kinda the fun & easy part. lol
and no to the second. This game is going to be similar to Mode7 kart racers. I want to keep it simple so I can release it in a reasonable time frame & also get more funding before going full 3D. But yes