I have always assumed that part of the Netherworld's massive effort to capture large swaths of territory is a prelude to another Blight to change the shape of Beluaterra again.
My assumption has been that everything south of Creasur would probably be wiped out, along with some of the northern areas.
And the way things are looking now, Creasur and its environs will also probably be gone.
Rather sad from my POV since Creasure/Foda has been my primary home as long as I've been playing BattleMaster...
