This was covered in EGM I think its a great idea. Very deep Sim meets RPGs meets strongehold.
The two brothers are going to work on this "cult indie" game full time.
If we get enough players I'm up for it.
I may join, I have it installed but I have to get to know it better before ruining your game as the required n00b-player.
The long-awaited update has been released.