I was looking around DeviART and stumbled onto this pic of Soundwave.
Dude, this guy hit the nail on the head! Go to deviantART and just look up 'Soundwave'! It'll be one of the first ones you see! But really, This disign is perfect! It holds some feature of G1 yet still could fit the design of the movie. If Soundwave makes it in TF2, I think we got a great design right here! What do you think?