Everyone is always talking about the Empire and Aldmeri Dominion and I even heard one person wanted Hammerfell to be next cause it's the only neutral province between the Empire and Aldmeri Dominion. Why does everyone forget the An-Xileel who own both Black Marsh and Morrowind and is my favourite addition from the Greg Keys books. Also I think the Stormcloaks' racism and proximity to An-Xileel territory will spark a war in the future if the Stormcloak ending is canon.

Also another reason why Black Marsh should be in the next Elder Scrolls