Well the realm is going to start small and that means pretty much no significant war anytime soon. I think Solari gave me an interesting idea about making a realm revolving around guilds.
I was thinking creating a realm with three guilds something along the line of Mercenary, Merchant, and Assassin. The goal is to provide a place for people to do what they wish to do. The realm politics will have to be somewhat more restrictive though. Since for mercenaries to be able to act like mercenaries, they will need to be able to declare war on realms they need to fight meaning the ruler will have to be willing to listen to requests of mercenaries etc. The judge will need to be pretty good at negotiating to get the assassins out of the dungeons and get their bans removed. Not sure what to do with merchants since black markets are gone and it isn't like they can travel to other realm's cities to buy food since most food transactions are restricted either within their realms or within their allies. Would be nice if traders can ignore restrictions as long as they travel to different cities but doubt something like that will be ever allowed.
Anyway, for now, just brain storming ideas.