Situation:
I recently started the Thieves' Guild quest line, and I'm up to the part where you join the ranks of the Nightingale, and the catch of being said Nightingale was to serve Nocturnal in life and death defending her shrines. (Not like there was an option to say no >.>)
Well it just so happens that I'm a werewolf as well. And from what I've gathered (from Bloodmoon and Skyrim logic) when werewolves die, they serve Hircine at the "Hunting Grounds" (Hircine's Plane of Oblivion) as one of his hounds.
So the question remains: what happens to my soul? Do I go with Hircine? Nocturnal? or something special happens being a Dragonborn where I override all daedra?