And before it does, I want to make my prediction.
Peeves the poltergeist. I reckon he's going to be important. Apart from the Bloody Baron, whom he fears, Peeves won't obey anyone but Dumbledore. Peeves is a nuisance and destructive, but Dumbledore, who has some amount of control over him, never tried to stop him making a nuisance or to get rid of him. There's got to be a reason for that! I look forward to finding out.
I'm not off to buy my copy of the new book just yet, but I'll get it later today and spend the weekend reading.