If you ask me, the odds are against harry defeating lord voldemort, i don't want to hurt anyone, especially daniel4ever who seems to feel very strongly about my pessimistic opinions (lol).
but of course, i want harry to win in the end! who doesn't? he's our hero, but come to think of it:
harry will be of age, but officially, unqualified, because firstly hogwarts may not reopen. and secondly, even if it does, he's not going back. Of course, the members of the DA, many of whom are teachers (or probably WERE) may take it upon themselves to train harry for the final fight to the death.
and then, the biggest tragedy of all : dumbledore's gone. the biggest storehouse of knowledge and wisdom is lost. how will the wizarding world stay together without him. harry may try to bring about unity, but don't we all know how short lived his patience is? especially with the ministry???
plus, the task of locating all the horcruxes AND DESTROYING THEM!
OMG OMG OMG.... how is JKR going to pull harry out of this one???