In the Game of Thrones finale, S08E06 The Iron Throne we can see Bran the Broken being chosen as King of the 7 Kingdoms, but Sansa claims for the North to be independent hence making the realm of 6 Kingdoms.
We could expect the other Lords to step for their own realms and also asking for independency, especially Asha Greyjoy for the Iron Islands and the Dornish guy. These two Kingdoms have shown history of being reluctant to be part of a whole Westerosi Kingdom.