Toying with an idea here devs:
The FOB and Resource Wars sites had some potential but I think that they can be expanded upon in some ways.
How about Team Missions? Lev 1 would be for 3 or so T1 frigs/destroyers, two dps, one logistics. Encourage players to learn team work and make them want to do these missions by having the rewards be a juicy carrot indeed. Not like the pathetic Resource Wars rewards. Implants, weps, faction ammo, mat researched single run BPC for standard ship maybe. All sorts of things can be put in here.
L2 could be a switch to cruisers, (problem there is the Amarr and Caldari T1 logi cruisers needing cap chaining). L3 Battlecruisers and introduce the concept of fleet boosts, and L4 being battleships.
Small sites being 2-3 ships, Standard being 4-5 etc, offering better rewards as you go.
This could encourage people to get together for these rewards as they only need small groups for small sites, helping bring new, small time and solo players out of their shells and learn to cooperate. Maybe new corps form as a result and new horizons open to these players.
Make rewards in LP with maybe an Agency Points gift plus bonus for time, dps, remote rep rate etc. with a nice agency booster selection as another tasty carrot after a few missions. DPS booster, remote rep booster, maybe even at the top of the tree a skill points booster for 24 hours.