No respawns. Just like PVP. More Income, more Skill, better Equipment, more SHIPS = Best Chance.
And this way would be the only way, except for the Special Outpost.
I'll explain why.
Players yould be securing the cargo transporters.
No need to interfere with NPC's since they are PVP and to conquer is like landing and deliver troops, wait for some time to see if opposing force can land support or allied troops.
In this case, only the lawfulls could attack. Rheinland, Bretonia, Kusari, Liberty...
And since they are all lawfulls, no interference in NPC's here too.
As for Special Outpost, it should be special because it should not interfere with NPCs too...
The roleplay would be bound to the server running it, it's just a matter of updating the news.
Everything is scheduled at a day each month.
This may sound little lame compared to Dab's colossal ideas.
It's rather simple though. :$