I know I said you can't compare the timing of promotional campaigns, not even for films at the same studio, but that said I just saw a tweet from Warner Brothers that a few hours ago they released a teaser trailer for The Dark Knight Rises - and it started shooting only a about a week before DS - and both are still shooting. We should only be so lucky that very soon Warner Brothers might also release a teaser trailer for DS. But we probably shouldn't hold our breaths...
And another tweet from another actor who's doing something in DS:
abramwelsh Allan Williams
Suddenly got 2 days, or is it nights, on 'Dark Shadows' Thursday & Friday. Busy busy.
1 minute ago
297 days 8 hours 13 minutes 42 seconds until the day the Depp/Burton DARK SHADOWS is released(ET)!!