Okay, so we can't say for sure these are genuine screens from the Dark Knight, but a few things do add up. These images are from the personal website of Michael Pryor, a former Pandemic Brisbane artist. Pryor now works at Pandemic LA. When did he make the switch? Late last year, around the time of the first round of layoffs in Brisbane when the Dark Knight project was canned.
And yeah, these environments do depict an awfully dark night, don't they?
[Michael Pryor - 3D Artist, thanks James!]