I've never been to the new track - not because I don't like things I hear, or even you bunch on clowns, but because I don't race away from York anymore. Here's my opinion anyway...
This was my favorite old skool track: Tiverton outdoors.
No big jumps, or obstacles, but massive height changes that the photo doesn't do justice to.
These are the key to all the great astro tracks in my opinion - look at RHR. From the bottom of the bombhole to the top of the tabletop is over 5 feet! And bombholes make excellent downramps (critical to not destroying a car).
So... If I remember from the pics correctly, what you have now is a dead flat track with some features built in?
Is there any reason why the astro can't be peeled back and "re-sculpted" under it?
If you need more astro James (at RHR) has dozens of rolls.