Quote Originally Posted by Bidoofdude View Post
I don't know if they'd go to the trouble of making another leader Optimus when one will already be on the shelves of a similar size. I actually think it's likely to be a unique UM mould.
Given the whole Combiner Wars story/toys there could be a good chance that it could be a repaint/retool of the Optimus/Motormaster figure with a trailer which can be equipped by the combiner slots.

I personally hope for an unique mould inline with the IDW version.