I agree about Nightfall being the daughter of Brownberry and Longreach. That sounds kind of...unbelievable. I always thought Brownberry looked younger than Nightfall anyway, even when you take Elven ageing into account.
I don't think we knew enough about Ahdri. Unless I'm missing something we have no idea why she became Savah's handmaiden, how she came into the job, a great deal of her personality, etc. I would like to know a little more about her.
The Khavi stuff speaks for itself.