Since the film is under 165 minutes, there should be space for a trailer or two as the 15/70 platters are said to hold up to 170 minutes (when I saw Avatar: Special Edition, there were no trailers and sped up credits for it to fit that time limit, but usually there are 2-3 trailers otherwise when I go to Lincoln Square IMAX).
Though one issue, is that the trailer needs to be on an IMAX film-print, and Man of Steel and Skyfall may not have those ready right now (indeed, I'm not sure a film IMAX release has even been confirmed for those films as they could end up digital IMAX only like The Avengers did). The Hobbit will have a film-IMAX release and I have seen a 15/70 trailer for it so that would make the most sense, granted the 15/70 trailer I saw was in 3D but I'm sure they would be fine creating a 2D version to attach to DKR.
My guess is the current talk about the attached trailers may only relate to regular screenings, and the only way to know what will be at those IMAX theaters is to ask people who go to the film on midnight/opening day what they got; I'm not going to Lincoln Square but rather AMC Empire, which is a digital IMAX a couple of miles downtown, so I would love to see the Man of Steel and Skyfall trailers in a theater even if they aren't on the 15/70 version.