Definately Voldemort, Greyback and Bellatrix will die.
And I think that receiving a dementor's kiss is the same thing.
Probably Snape and Peter will die
Neville's Grandmother will be somewhere in the fray and will be injured.
Alice and/or Frank will make at least a partial recovery.
Percy will be tricked into doing something that helps the Death Eaters.
He will die sometime later, in a way not directly related to the trick.
Lupin & Tonks can't die. Their story is undeveloped.
Ron can't die until JKR explains the parallels between him and Dumbledore.
Draco will be killed by Voldemort or Death Eaters because he can't make up his mind.

This is complicated. How many points would this be worth if it's all correct?