She keeps going back and forth on an eighth book.
She said at the premier of the last film that she didn't think she would do one. I really hope she changes her mind again.
I am very excited for the encylcopedia though.
Apparently (and I'm sure someone has already mentioned this), her description of horcruxes was so detailed and well...gross...that it made her editor sick.
I find that very exciting, in a macabre sort of way.