All drone pilots have their own chargers. I believe he was referring more to plenty of places with access to electric receptacles and enough space to set up their own chargers. Probably something similar to the small work areas airline business...
Shade. Especially at the charging stations. Batts get warm when charging and flying, a hot battery must cool before recharge or reuse. Direct sun can end your day of flying real quick. Ideally an air conditioned building for batt storage and...
I'd think standard household current outlets would suffice. People will have chargers for their own equipment, or should. You don't need to provide chargers, just access to power.
Maybe separate the outlets on different circuits (to spread load...
Permanent NIST obstacle course built in including the advanced ones.
Wifi throughout
Places to charge batteries
Permanently marked control points for mapping practice
FPV courses
Bathrooms
Make it an FAA FRIA
Training props for learning workflows...