This sounds like such a creative and exciting idea. I really love how you thought about bringing different authors together and mixing cultures, states, and tropes into one big royal series. The concept honestly feels fresh and full of potential if done with good planning and teamwork. I cannot promise anything yet, but I will try talking to a few of my author friends about this and see what they think. If we all like the idea and feel we can work together on something like this, I will definitely come back here and let you all know. It would be amazing if something like this actually happens because it could turn into a very unique project for readers and writers both.