Nice Idea, so you can still attack and capture the district but it requires figjting through a whole army of drones, inventive.
However your implementation still lacks 1 important factor:

Reasons for the Gel-Breathers to care

ISK alone isn't an incentive for EvE players to get involved in holding land. Their needs to be a reason, unfortunately the expansion EvE:Colony will male this harder to achieve as EvE players aren't likely to be handing 'ownership battles' of these structures to Legion players. I can only hope that this idea for planetary conquest involved with EvE is considered and passed on to gel-breathers.

• Step 1: Triple the Districts per planet.
Currently there are only 10-15 districts per planet, this is too few for any kind of Corporation/Alliance to be intrested, it also makes Logistics far too easy.

By adding more districts a larger number of facilities can be created for more varied bonuses to EvE and Legion Plauers alike.

• Step 2: Basic Infrastructure


• Step 3: Legion centric installations


• Step 4: EvE centric installations


• Step 5: Overlapping Installations

Then you give corporations the option of more than just capturing or defendingmthe districts.
Let them steal from Storage/Holding facilities, let them sabotage research facilities to take more resources, let them delay temporal wet-docks.

Doing this turns Legion Districs into cold war weapons, entire arms races will be driven by holding Legion land, the abilty to have a Capital ship in 5 days instead of 7 is a massive advantage that will get Gel-Breathers attention, you can build entire fleets in days for a few more resources, we will become the prelude, involved in the middle and epilogue to war and it will be glorious.

How do you intend to deal with preventing small corps from owning half the map because they have sixteen of their finest?

Fair enough, though you would be surprised how important the temporal docks become, currently large battles have little to no gear-up if Legion facilities allow you to get a larger fleet to the battle they then become the first tragets, no doubt they will be hard to balance, but if you aren't giving some rather powerful bonuses to the pilots, they just won't care enough to let let go of EvE:Colony, which is currently the reason PC operates in molden heath.

Hell yes, the thing is though if there is enough interest in Legion land, then you won't be dealing with single mercs or small p*ssy alliances, it'll all be overseen by the alliance, they will have one guy ground-side incharge of running legion operations.

Not to mention if they don't want to loose it then pilots can provide orbital support, creating more space battles everytime a district comes under attack.

yeah we need a president offering us a 'newdeal' prohibiting monopoly... oh wait....

You seriously think that relying on AI to hold down the fort is a good idea? LOL

Yes bu at the same time, just like in EvE there needs to be lots of land, such that holding say a planet or 2's worth of districts isn't uncommon.

You can break the monopoly cycle if there is enough interest in holding the land, it needs to be something large alliances want to be involved in, yet have enough districts that the smaller corps with land aren't considered worth the effort for them.

It needs to be like EvE your expansion is limted not by how much land there is but by the amount of resources you have at your disposal.

They could just wait for the overheat to end to hack it. I'd say the command as well as 1-5 km around it is locked down, and the rest is okay.

Look, my problem is not that your system is good or not. My problem is that is it enough?