"Markerguru" has posted the cover to Transformers Alliance #3 that is coming out February 18th. Alliance is a four issue mini-series that bridges the gap between the end of the first movie and the beginning of the sequel (more or less).
As noted by the artist, the "the decepticon shown on this cover are: fracture, reverb, jetstorm, and gunbarrel. not in that order. i'll just let you guess which is which. it should be pretty easy now right? note: no new movie characters shown here. so to anyone who guess soundwave, you be wrong." The four characters are mostly Energon repaints re-released with the first Transformers movie line so probably will be cannon fodder in the issue.