Until Domain and Settlement Selection nothing is certain but the current expectation is that Al'Khezam and Tryggr will be the kingdoms that have biomes with Dras population majorities. Al'Khezam will likely have the Swamps and Tryggr will have the Salt Marshes.
In Al'Khezam there is at least one duke, few counts (including myself) and some mayors who are aiming for the Swamp biome with Dras. If you want to know more about us you should visit Al'Khezam Discord server and have a chat!
I think Tryggr also has couple dukes and some other people interested in the Salt Marsh biome. I'm sure they can tell you more about their plans :)