This sounds like a really great idea, but we'd need more people for nations. I think you should try and recruit people or post it somewhere so people can be interested in it.
Wouldn't work. The Ak'r of Shida live on a seperate continent, the Ak'r of the Yellow Sea are nomads and never sit still longer than a day, the Deep Ak'r or deep in the lost jungles and are mostly unknown, and the Desert and Jugle Ak'r are at war
It's not the same type of magic. It's mysterious, and only few know entirely how to work it. It's unpredictable, and often disasterous. Nations wouldn't control magic, but instead certain guilds. Like the Dragon Cult, or the Arcaenium