OOC, that would be great. IC, not much, since you will lose the defensive belt that always protect Sirion itself. It's a way to kill Sirion, but I'm already giving up... Sirion is no more. It's already dead inside. At least you will have a new realm in Slimbar, maybe another one in Krimml/Oligarch (if Ecthelion shows up).
This is the thing about the geography of that area though. Even if its split up between multiple realms, eventually one realm will manage to take control of that ring of cities and then will basically be destined to be an eternal powerhouse of the continent.
Sirion's current position is pretty identical to what Bedwyr and Arcaea achieved on FEI. Arcaea eventually secured control over the ring of cities and was then able to dominate the continent. The only reason Sirion is now on the verge of disintegration is because it lacks the internal dynamism that kept Arcaea thriving.
But none of this is a bad thing. If Sirion actually splits up you'll have multiple realms which will compete with each other until survival of the fittest kicks in and one ends up dominating. But that pretty much guarantees at least three years of dynamism and interesting things happening in the north which is far better than the staticness of its history for most of my time in game.
