I'm pretty sure all that actively worship have their souls go to her domain, just like any other god. Of course, because of her caprice, and how her "attention" to a drow typically involves cursing them, I imagine your typical drow isn't as much a worshipper as someone who just hopes her gaze skips them. So probably not too many. On the bright side, their lifetime should get them pretty used to the abyssal way of living.