Who will be in it? To be honest I've forgotten a great deal of the subplots, and have given my copies away to the Library... (not an insult.. I always give away all popular books to the library as a donation.. Harry Potter, Neil Gaiman... ) Share and share alike.
If I recall rightly, Arya, Jaime, Cersei, and Samwell were the main POVs in A Feast for Crows... we have yet to hear from Tyrion and Daenerys. I'm not certain if the author really did slice this segment of the story in half, one hopes not. It would be painful to wait another few years to hear from Arya's world again.
Fortunately the HBO series seems to be getting better, but as always, film can rarely match the written word.