The Harry Birthday conspiracy

[spudmonkey85]

No: HPFGUIDX 72962

So, Harry and Neville were both born in July and Voldemort was after 
one of them that was supposed to be his downfall.  He figured it was 
harry and we all know the story after that.  Dumbeldore said one of 
them was destined to kill each other at the end, but what if it is 
Neville who really is the one who is supposed to bring Voldemort down?

What if Voldemort guessed wrong and in the end it won't be harry to 
bring him down at all?  Now that would be a curve ball wouldn't it.