It -could- happen. Most guilds are going to try to appeal to a large audience though. Limiting one's group to "knights only" may make that a difficult task. If this was going to happen, the organization probably wouldn't be turned into an actual linkshell/guild. Organizations could help foster RP between groups but the setup of it all would be sort of tricky. It may be difficult to get enough people on board for a particular organization and then even harder to keep them an active part of it. The leader of such organizations would likely have to frequently create some missions or something for the group. For instance, perhaps a group of knights come together as a faction of Limsa-Lominsa's Knights of the Barricuda. The leader of this faction would have to keep up with regular events such as gate guard duty, hunting/training trips, tracking down criminals, etc. Like I said, it could work. It's just a matter of organizing it and keeping it going without creating an entirely separate linkshell/guild for it. And if a separate shell/guild was created, it should only be used for the organization's events as to not frequently take away members from the main RP guilds.
