Player Features and Ideas Discussion

I would like to build a type of citadel building that i can deploy / build in enemy space something that players will attack that can also defend itself, it could have a system wide effect like lowering bounty payments that works on an enemy corp. It could have effects on the new entosis link capture system as well. i like the idea of castle building and siege warfare etc, i want to be able to choose my defenses, and my choices may decide the outcome of an attack. I just think that there could be more to industry then just minerals and products but you can build offensively / pvp as well.