Wll I thought that there should be a place just so people can write there theories down so....
Here are some of mine:

1. Harry and Ginny will get back togeather

2. Ron and ermione will express their true love

3. Hermione and Ron might die :(

4. By killing Dumbledor Snape is somehow helping

5. Nevil Will do something inportant. (and have anyone of you notices that Nevil has evil in it? N-evil-