I remember seeing an old prototype sculpt of Fulgrim holding the IIIrd Legion's banner but nothing ever came of that sculpt. I think it would have been an interesting alternative sculpt to represent loyalist Fulgrim (if he was using Fireblade in that sculpt, which I can't recall). Does anyone else remember that model and would have been interested in buying it?
Personally I would buy an alternative Rogal Dorn model. After seeing the very nice cover to Praetorian of Dorn I was so sure we'd get a combat pose based for Dorn based on that cover. Right now his current model's pose looks too sedate and his sword looks too short to reflect the bonus rules he gets while using that sword. Alternative models for hammerless Ferrus (showing him using just his fists in battle) or Wartorn Corvus Corax (looking all Rambo with his scavenged Heavy Bolter and broken wings) would be nice in my opinion too.
Or perhaps we should be pestering GW to make action figures of HH Primarchs so we can pose them however we want?