Man I keep noticing new things! Saw it for the 8th time. Noticed these two things:
So early in the film, there an orphan who washes up dead from the sewers, and Blake visits that scene
Later, when Gordon goes into the sewers and there's an explosion, I guess Blake assumes Gordon's been captured/is in trouble. His instinct is to go to an outlet like where the orphan washed up (not sure if it's the same outlet), and viola there's where Gordon washes up too.
I never connected the scenes until now.
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Batman's first appearance, the Batpod speeds away and all the lights go off in its wake (due to EMP).
A parallel to this is during the siege, when Blake is driving Gordon down the street, the lights go off in their wake (due to power shortage I suppose).
But it's some foreshadowing I think to Blake becoming Batman 2.0.
There's so much layering in this film, another reason I love it