I'm a Realms fan and while I was originally taken aback by the change, it's starting to grow on me. I can see a lot of storytelling potential to explain the change. The Purple Dragons are still the army of Cormyr, but for some reason a group of Amethyst Dragons approached the Crown or the War Wizards and cut a deal for a new order of knights. What threat are the reacting to? Is ther some prophecy driving them. What is the purpose of this new elite order. This can expand the lore as opposed to break the lore. I like it.