Well, at this point EVERYTHING here is speculation, BUT when you REALLY look at the pics I see it...
() The shape and angle of the eyes
() Center crest's shape and size
() The red pieces on going down the center of Smokescreen's head...turn them blue.
() The shape and angle of the chin and their adjacent "cheek" pieces
I dont have Photo shop, but I know someone out there does...Just take Smokescreen's pic and change the colors to Prime's... It's actually kinda cool.
Still ALL speculation, but I DO see the definite similarities... The reason the toy would be "Optimus Prime" would be for 1) Secretiveness on Hasbor's part, but 2) Smokescreen idolizes Prime and will present himself as such (assuming our observations have merit) because if THE OPTIMUS PRIME shows up to fight, the Cons would loose their Cybertronian Bowels... Especially Megatron...assuming Predaking doesn't eat him lol.
Random thought...Maybe the Dinobots can come back the same way the Preds are being resurrected. There aren't many viable Autobots out there, so why not "make" some more? lol