| There's a nice little "hello, how's it going" with her saying that Harry's story will be complete in 2007, and that's a little sad, plus a few more Rumours settled.
(If these aren't new, shut up, I didn't see them before today)
Aunt Petunia will start exhbiting magical tendencies.
No, she won't. Aunt Petunia has never performed magic, nor will she ever be able to do so.
Peter Pettigrew's silver hand will be used to kill Remus Lupin.
Nice idea, clearly predicated on the legend that only a silver bullet can kill a werewolf - but incorrect.
Book Seven will be called 'Harry Potter and the Pyramids of Furmat'
The Pyramids of Furmat lie a few miles east of the famous Fortress of Shadows, not far from the magnificent Pillar of Storge. Many tourists prefer to view these ancient monuments at night, when they are illuminated by the Green Flame Torch.
Mrs. Norris is an unregistered Animagus
No, she's just an intelligent (and unpleasant) cat.
Harry is a Metamorphmagus
A Metamorphmagus is a wizard who has the innate ability to transform their appearance completely, for instance, from black to white, young to old, handsome to play and so on. In Harry's extreme youth, he produced some impressive bits of uncontrolled magic when undress stress, including making his own hair re-grow overnight after a particularly brutal haircut from Aunt Petunia (a dream that had its roots in my own childbook. My mother, God bless her, had the idea that she was much more skilled with the kitchen scissors than she really was, and I had a couple of shockingly dreadful 'trums' at her hands. How I wish that I could simply stick it all back on...)
Anyway: before they have received training, very young witches and wizards are prone to unstable surges of power, often accidentally producing effects that they may have to train for a few years to be able to reproduce diliberately. Their magical ability is bottled up for weeks at a time and then, when made angry or frightened, it simply explodes out of them, sometimes (as in the case of the vanishing glass in the chapter of the same name, 'Philosopher's Stone) causing at least as much inconvenience to themselves as others.
So Harry is not a Metamorphmagus - just a boy who was clearly magical from birth.
Lupin will come back as DADA teacher
Alas, no. Lupin's exposure as a werewolf did irreparable damage to his prospects for a career in teaching, and with the likes of Fenrir Greyback out there, werewolves are un likely to receive a good press any time soon.
The Sorting Hat is a Horcrux
No, it isn't. Horcruxes do not draw attention to themselves by singing songs in front of large audiences.
Luna is Snape's daughter
This is a most tantalising idea, but no, Mr Lovegood, the editor of 'the Quibbler', really is Luna's father and Snape does not have a daughter.
The last part of the prophecy ('neither can live while the other one survives') means that Harry and Neville will have to kill each other
Inventive and intriguing, but wrong. See the answer to the poll question for a little more elucidation on Neville's relation to the prophecy.
Dumbledore is really Ron/Harry 'from the future'
Your inventiveness knows no bounds, and I do not mean that sarcastically; these theories open up exhilarating new vistas of possibility... but they're wrong. Could it be that by speculating that Harry/Ron becomes Dumbledore, you are seeking reassurance that neither dies young?
I've also heard a whisper about Ron and Hermione's son time-travelling, so I shall go further to tell you that NONE of the characters in the books has returned from the future. As for the idea of Ron and Hermione having a son... (chuckles as the distant roars of a million shippers reach my ears, all cursing me to an eternity of unsatisfied curiosity).
^ from the horses mouth folks (my apologies JKR, I know you are not a horse... its an expression). I love the reponse on the book 7's title rumour  | |