I think the Time Lord Victorious thing sort of began and ended in the same episode. Adelaide committing suicide was basically the massive crash down to earth, the pride and then the fall.
The End of Time did kind of reflect that fall. We meet a desperate Doctor on the Ood-Sphere. His pride's been crushed, and though he's trying to force a smile, he's failing miserably. Turning up in a hat and garland, pre-preparing silly jokes, going on for just-a-little-bit-too-long about what a wonderful time he's really honestly having... it's a Doctor who's learnt in no uncertain terms that he abjectly cannot fight time, and he's emotionally crippled by that fact - as much as he tries to pretend he isn't. We don't see the scary Doctor, we see its shattered remains. Trying to laugh. Which - as much as I do agree that the Time Lord victorious was one of the most compelling ideas that the series has produced and yet tantalisingly short - was, perhaps unfortunately, the only way that the show could've really made sense.
He does also echo the Master in that opening sequence. "Funny, no, little bit?" The darkness is there... it's just muted.