I am not sure we should have that, but if we get anything along those themes I kinda hope for a DLC where a new figure among the Nords rise and take the throne. Someone who is brilliant politically and a great strategist.
The DLC could start out after the Civil War an somewhat randomly one of the Holds are taken over by a new, unknown man. And from there you try to work against them, but they simply outmaneuver you and the Legion/Stormcloaks. Soon, half the nation is under them and more holds are in danger of falling, and you get the option to join the other side or stay on the one you are. Regardless of the choice, this new person manage to make themselves the ruler of Skyrim. Just a quick idea of the top of my head, and one that could be improved and expanded upon a lot, but I am not going to do that right now.