As far as Devastator goes, there are three versions planned. The first is the $100 version where the six individual Constructicons do not have robot modes, just vehicles mode that reconfigure to form the gestalt (think Voltron). That Devastator will be 2 feet high and about 4 feet wide. The next is the individual Constructicons that do have robot forms but cannot merge. The last is the PowerBot that doesn't really transform, it’s the Devastator look on the front and the individual vehicles painted on the back.
Breakdown of the six constructions:
Demolishor - red O&K/Terex RH400 Hydrolic Mining Excavator (torso)
Rampage - yellow Caterpillar 992G Front Loader (right arm)
Long Haul - green Caterpillar 773B Dump Truck (right leg)
Mix Master - silver Mack Cement Mixer (head)
High Tower - yellow Kobelco CK2500 Truss Crane (left arm)
Scrapper - yellow Caterpillar D9L Bulldozer (left leg)
As you can see, the RH400 from the trailer gets an official name. Overall the leak back in October was on the mark on the Constructicons except for the duplicate dump truck which now seems to have been a potential alt design for Long Haul.
I don't know if the two aerial Autobots, Breakaway (F-35 Joint Strike Fighter) and Springer (V-22 Osprey), are movie characters. Below are select pictures from the various galleries. For the highlights of Hasbro's plans for their various Transformer lines click here.
Galleries: TFormers | The Allspark | TFW2005 | More TFormer pics (over 100 pics) | Seibertron.com (100s of pics) | Transformers Club
Thanks to Elis and Boo for the links and pictures.