I'm not surprised it doesn't appear WB is going for a SB spot. I think the next trailer will be released based on the way they handled TDKR's, along with Zack's personal preferences. I may be reaching a bit, but I'll put my money on trailer #3 coming out in March:
- - Zack's birthday is in March, so...
- - ...he's found a way to release each of his live action movies in March.
- - WB released TDKR trailer #1 (teaser), #2 and #3 roughly one year, 6 months and 3 months prior to the film's release, respectively.

I kid I kid, they might have been mentioned before but they would be cool to see happen 