Part of the issue is the fact that the East did not get involved in the Crystal War. The Empire went as far as to turn away emissaries from the three nations and the Marquisette when they requested aid. They really need to pull something out of their asses if Relic were to be introduced in Dynamis, especially considering the set that is already present was introduced with sufficient backstory. I'm almost expecting some sort of rogue operation that could be disavowed that magically got swept up the same time the Hydra Corps were.