1. Another dlc based on a daedric lord, perhaps a different lord though, one that has some relevance to skyrim, perhaps peryite who was depicted as a dragon i dont know what hee quest would be about though. Or an adventure into the void (what ever it is) involving the dark bortherhood, sithis and the night mother, even meeting many of the npcs and souls you sent to the void from oblivion. Just anything that sends you to another realm like the shivering isles
2.Something that massively expands onto the main questline (not like dragonborn dlc) that gives you more of an opportunity of, A) Destroying the rest of the dragons in skyrim (because the continuously respawn right?) and completely rebuild the blades to a big number, featuring new npcs rather than recruiting, because 3 members that acutally do something, is not enough and B) Either forming an alliance with the dragons to befriend the races of tamriel and with the blades, still forming the alliance and disbanding the blades ( because im sure delphine would oppose the alliance, you had no say in whether parthurnaax deserved to live ).
3. The dlc I really wanted, with the war over, whichever side you had chosen, you could either join the aldermeri dominion or destroy them, but only the embassy within skyrim, either General tullius was finally sick of them, you would destroy the dominion and plant strong evidence of the stormcloaks doing it before the war was over, or ulfric would personally travel with you and combine the voice to end the thalmor existence in skyrim. also being able to take out those camps from either side that you find around skyrim, plus if on ulfrics side being able to cross the border, as a small outer map, into cyrodiil and taking out some of the commanding forts which would stop the word reaching Cyrodiils capital, for a while, of sending recruits to skyrim.