Yeah, I finally found one of these a couple years ago and was very happy to get it...great repaint. Actually I quite like all the Bayverse "G1-style" repaints like Ironhide, Ratchet, Tracks, etc.
I'd say Diaclone is less likely, but you never know...with the new Bayverse MP and that new movie leader stuff coming out, it would make sense to re-use the molds and do some alternate color schemes.
Sounds like time for a digital mockup!