I agree with you Laila about the whole Nazi Germany thing. I was thinking about it while reading parts.

I think we keep forgetting that Mad Eye died as well as Hedwig. I loved Mad Eye's Character. (Constant Vigiliance).

Supposedly JK is going to write a Harry Potter "Encyclopedia" revealing some back history on some characters and giving us more tidbits of what happens in the future.

Additionally, Jo announced that she "probably will" create a Harry Potter encyclopedia! From NBC's website:

The encyclopedia would include back stories of characters she has already written but had to cut for the sake of narrative arc (“I've said before that Dean Thomas had a much more interesting history than ever appeared in the books”), as well as details about the characters who survive “Deathly Hallows,” characters who continue to live on in Rowling’s mind in a clearly defined magical world.
Also, according to Mugglenet, JK could bear to kill off Mr. Weasley. I'm glad she didn't, I would've been very sad for the Weasleys. But Still, I can't help but wonder what George is going to do without Fred. I suppose run Weasley's Wizard Wheeze's by himself.