Why do you think this would happen? It's kind of the foundation of your theories, and you don't provide any reasoning to back it up.
Soon created the Sapphire Guard from "the noblest samurai" of Azure city.
Not necessarily. With Soon dead and Kraagor alive, we have no idea who ends up with which gate, as we have no information about where anyone's homeland is. It could very well be that in this scenario no one gets the same gate that they did in the actual comic.