The geography of the realm is just totally not going to work, it is both too large and too thin. Maybe if it dissolved into 3-4 realms, all within an empire (similar to what Luria is going to do), we could keep being a powerhouse, but otherwise it is going to come to its knees the second a decent group of realms decide to fight us.
The realm as it stands lend the individual Dukes the power to break from their current realms. In time it will sort itself out in regards to composition. To imply a realm that consists of regions from 2 realms needs to split into 3-4 is just silly, they could do that but splitting into 2 realms would be sufficient.
Considering that one of the main players for the Luria Empire just happens to also be pushing for a FEI empire based out of Arcaea, I'm sure something could be arranged
