Anything other than flat out chicanes connected by hairpins would be good
If it's going to be hot it would be a good idea to avoid long sweeping corners for 4wd to keep everyones motors soldered into the car
Those little sleeping policemen we had last time were good (with a bit of wood embedded into the ground, weren't they Vermin's creation?), bombholes would be ace too. The corner table we had last year was good, how about having it coming onto the straight like the Losi race in the US this year? It might be a bit far away to get right if the straight is at the back as usual, so how about having the straight in front of the rostrum. There'd have to be a bit more of a gap between the rostrum and the track though so you don't get people leanding forward on the rostrum.