Thanks to Transformers Wiki (Which always posts official news), we now get a clear glimpse of a new Decepticon, Crankcase.
The Decepticon himself has been added to the list of confirmed Decepticons that will appear in the movie, on the
Dark of the Moon page on the site.
While apparently we have seen the Decepticon himself in the previous
Super Bowl TV Spot...
Pretty clear he's the SUV on the left that crashes on Ironhide.
In case you don't know, Crankcase is not a new Decepticon, but he was a
Triggercon from the Marvel's Generation 1 Transformers comic series.
Transformers: Dark of the Moon will hit the theaters on July 1 this year!