Reno Stead is a must go to place. It would also be nice to have the Red Bull Air Race venues too - these were all in the FSX proprietary airports (well, one Red Bull race, anyway).
OshKosh could be included here and Wings over Wanaka in New Zealand.
Of course we’d liove to see appropriate race aircraft included - please, Asobo, no mirrored livery bits because many show aircraft have special asymmetric designs. Although maybe the third party guys will do better here, especially A2A type racers with Accusim