I just can't help hoping that Snape and Dumbledore pre-planned Dumbledore's death.
Snape has always been one of the most complex and interesting characters, and I just can't accept the fact that he might truly be on Voldemort's side.
If it turns out he truly is back to his Death Eater days, I hope he redeems himself in Book 7 by sacrificing his life for Harry or something.
And, also, Rowling left SO much that needs to be tied up in Book 7 I don't see how it can be any less than a few thousand pages.
"One no longer loves one's insight enough once one communicates it."
The opposite of creation isn't war, it's stagnation.