We have decided to go ahead with the previously mentioned overhaul to guilds: http://forums.lusternia.com/discussion/2282/guild-overhaul/p1
We have not yet set everything in stone as far as how all the mechanics will work, but we received a lot of great ideas from the previous forum thread and are working to incorporate them. We will post specifics once we have things confirmed. The actual overhaul is still a long way off so don't stop doing whatever you are doing with your guilds.
Soon, we will be reaching out to organization leaders (in game) and forming a team for each org to brainstorm and develop ideas for the new Factions (or whatever we end up calling them). Our hope is that by working closely with players in each organization that we can create some truly awesome things!