Hmm, this looks like old news, since the DLC has been out for a bit, but since we are the PC's premier site for Transformers news, I feel duty-bound to post it: below is a trailer for Fall Of Cybertron's Dinobot DLC. As you might expect, it allows you to play the lizardly Transformers in multiplayer. It also contains retro Optimus Prime, insecticons (I think? - I originally mistyped that as "invectobots", which would a different type of transformer entirely) and some other robo-stuff.
Dinobiff! They just need Death's Head DLC and Alec will truly be in heaven.