My suggestions are pretty basic honestly, but it's stuff I'm sure we'd all enjoy
1. Modded Vanilla GTA Cars - gives us more options, new stuff to look at, and wouldn't nuke the server resources
2. Purchasable boats
3. Eyebrows/Facial hair
4. Airline service (whitelisted with training like EMS/PD so Danny's don't smash Cessnas into things, and have the plane blacklisted to non pilots)
5. Hard to explain this, but I've seen a dealership format in another server that allows you to buy cars through the internet at the dealership, had photos of the cars as well as specs of the vehicle and photos.
6. The ability to store items in your trunk and later grab them from it
I checked the FX Server last night, as far as jobs etc. go, you guys have it on point right now. Keep doing what you guys do, we all appreciate every step you've made