Official pics of Devastator and other new Kre-o sets are available.

He has the traditional G1 Devastator head and comes with a Kreon Devastator and Ironhide. And each Constructicon has an individual robot mode with pretty good G1 matching heads. Looks generally pretty decent to me (someone who hasn't got any Kre-O).

There's also a Kre-O Vortex using the new FOC Vortex colours.