Pics are on twitter and showing up at sites like Seibertron.

It is Cyclonus, (ghost) G1 Starscream, Armada Thrust, Prime Breakdown and IDW Roller combing into Galvatron.

Bit odd really.

Edit: oh crap, there's a seeker head for a CW Aerialbot. Guess which characters Funpub is going to be churning out then.