So there's a lot of "when you die, you ____" in Skyrim. If you're simply a Nord, you go to Sovngarde. If you're a werewolf, you go to Hircine's Hunting Grounds. If you're a Nightingale, you're bound to the Twilight Sepulcher. There are probably others, but I can't remember them right now. My current character is both a Nightingale and a werewolf, so what would happen to her soul? Would Hircine and Nocturnal duke it out for possession? Or would her soul be split and go to both places? Sovngarde is probably out of the question now, unless being Dragonborn overrides the Daedra's claims upon my soul.

Either Dreamsleeve or joining the oversoul of Talos.

*My most favorite idea is the Daedric Lords have a WSoP, Texas Hold 'Em challenge. Hope Malacath does not ruin the party for being boring

It's a common mistake to think only Nords can get into Sovngarde. Getting into Sovngarde means dying with valor and honor and being a True Nord at heart, which does not necessarily mean being a Nord in all aspects.

Here's how this breaks down:
Being a werewolf takes precedence. Your character would go to Hircine's Hunting Grounds upon death.
If you get your lycanthropy removed, then it would depend upon how you feel about Nocturnal (or any other Daedric Prince.) If you vow service to them, you'll go to their realm. If you vow service but then denounce them, you won't.
If you don't have any allegiance to any Daedric Princes, you aren't a werewolf, and you don't die as a True Nord at heart, then you'll just go to Aetherius to be reborn.