I know , I know what the hell could possibly be novel about another wish list?
Some nagging details:
Props should become chocked with wool as you bore through a field of sheep grazing at low altitude.
Sheep should explode under cannon fire...or upon colision with GVs going at full tilt.
Top of every hill should have a gent complete with kilt and sporun waving as you zip by in those vintage aircraft HTC will probably never get around to creating. Alternatively, Hans and Helga in Liederhosen will do.
Trees: Planes tend to come apart when trying to land into them. GVs do tend to slow down after hitting one.
Just some thoughts.