- Actually the 'final confrontation' with Tom will take place before the same with Dumbles...
Y'know, that could really be a righteous revenge on Dumbles, take down his biggest enemey; then turn around and take him down just as easily. It's a pity Tom won't get to see Albus humbled, though it might be a nice touch on Harry's part, just before he finishes Tom, to let him know that Albus will be joinging him short - and perhaps even let Tom know just what will happen to Albus; after all, they've both been wronged by him and Tom deserves to know that there will be a reckoning for the manipulative old coot.
Author's response
Hows this for a cliffie then? Tom will be dealt with prior to Dumbles, but he will be there to see Dumbles fall...