Whatever a possible DLC might be, it must be a nightmare to start a story from such widely different starting points. I mean your characters can be
dead/spirits/whatever, some weird new type of vampire lord, a spawn of said lord, Spawnstarion (in two variations ?), a newly minted god, his consort, the head of a Sharan monastery, the Chosen of Mystra, whatever a reformed Durge ends up being, along with all the more normal endings the characters can have.