That really does sound awesome! So there will be caravans-ish type things that go to npc cities to sell stuff? That is awesome and I hope they will be attackable! Would be sweet to have bandits that raid caravans for resources, and for some players have an army to act as guards for someone for a minor fee. It's also nice to see that you let some people defend a nearby npc town.
Picture made by Aametherar the orc (Elves are the best!)