Speaking of DOTM, Counterpunch confirms that the 3D trailer is essentially identical to the 2D except for minor differences:
Yesterday I went to watch Pirates of the Caribbean 4 and before it started saw the trailer to DOTM in 3D here in Melbourne, Australia. Wow.... guess what? It's the same as the last official trailer released worldwide except for 3 major changes. a) We get to see Optimus and Ratchet walking in the Ark observing all the statis Autobots b) Shows more of the Dweller as it tears down the building Sam and Carly are in c) We get to see Optimus on flying mode shooting at the mouth of the Dweller in mid-sky. Really, really awesome!