Apparently he's in it, and yes he forms Devastator with the others, albeit only in vehicle mode! (so now we know the Legends Devastator toy is the correct one). From the TV Spot "Bumblebee". That's him on the left, red trailer-dumptruck with a white stripe. Oddly enough, even though the shot is blurred, that seems to be an Autobot insignia on him (check the top, it doesn't have the Con spikes on top). Here's hoping Hasbro will make a toy of him, or at least he's seen in robot mode in the movie, even if in the background.