Combining NPCs and players is an awful idea for PvP right now - NPCs are too disturbing. I'd much rather see player characters invested in the conflict and their factions than nameless and clueless NPCs.
I believe that something could be suitable for this system as it's literally the bloodiest conflict among unlawful factions in Sirius if my memory is correct.
Yes, duh - make a semi-permanent PvP Plugin in systems like this, not NPCs. Omega-5 is awful for caps anyways, it would benefit snubbers. I see no reason why not to have PvP battlezones. the PvE ones are amazing at promoting activity, but it's 95%+ CAP ship activity. Just pure through one writeup + pvp plugin you could incentivize people to pew each other in otherwise unused systems. The main issue you will have is regions without this whining
Having a semi-permanent pvp plugin in a system would also incentivize us to make player events there to take advantage of it