I was very close on nearly everything. Only two wrongs.

Guessed right:
Dumbledore asked Snape to kill him
Snape was true to Dumbledore
Harry became a Horcrux by accident when V killed Lily
Lupin and a Weasley (probably twin) would die
Wormtail would help Harry and die
Harry would live in the end
Voldie would die
Ron, Hermione, Ginny and Neville would live
Neville would do something heroic
Dobby would return and help Harry
Grawp would feature during the final battle
Draco would help Harry in some way (he didn't identify them at the manor)
They would return to HogwartsThere would be a battle at Hogwarts

Guessed wrong:
I thought Hagrid would die
Oh, and I thought McGonagal would headmaster (but it was Snape. AWESOME!)
sort of wrong: I didn't think Harry would die. Doh!

I didn't predict any other deaths than ones mentioned above. Dobby came as a slight surprise. Hedwig too!


So, the things I was wrong about I was quite happy to be wrong because the book turned out so much better than I had hoped!