Perdan and Caligus shouldn't rest too assured, what they destroyed was a banner, the same nobles and the same regions are there.
Sooner or later, those realms from the south, will come kicking in to the north, and of course there will be the possibility that would be a 2 vs 2.
That is what i love about BM, everything is a process that repeat itself over and over.....with different color!
Peace.
actualy it would be 3 vs 2, with Fontan suporting those southern realms. They have plently Iblandesh nobles.