Headmasters would be nice (Scorponok) but there are plenty of other characters from earlier in G1 that I'd like to see get reissued first: Dinobots, Devastator, Shockwave. I also hope that they finally get round to reissuing Sixshot as was rumoured early last year.
Either way what a great start to 2011:
Jazz, Tracks, Megatron, Soundwave and Grapple in January,
Kup, Blurr, Wreckgar and Perceptor in February,
Scourge, Wheeljack and Rumble+Frenzy in March.
AND we've got Masterpiece Rodimus to come!
(I didn't order the TT version as I have no interest in the trailer so waiting for Hasbro's).
As well as loads more awesome official and third party releases in the next 11 1/2 months if the Battle in Space comic rumours are true and the G1 reissue rumours are true!!
2011 already rocks This could be the best year EVER for Transformers collectors.