I'd like to play as the Thalmor for RP purposes and stuff. You'd join up at the Thalmor Embassy in Solitude. They'd mostly fight against the Stormcloaks, but might also have a few imperial skirimishes, considering they're not exactly on good terms. There might be sidequests for them that involve finding and arresting/"neutralizing" Talos worshipers. I think if it had decent voice acting and quests, it could be pretty fun. Who knows, it might be ok with reused voice acting from the vanilla game.