Ok, a little vague, what with this being one of those silhouetted teaser pics, but I can deal with that unlike some.
So this will be some extra 'city-forming' add-ons which will attach to the Energon/Year of the Snake Omega Supreme in both modes.
I would assume that will put a cropper to any combined efforts with Optimus Prime to form Optimus Supreme?
Is this a new sideline for Maketoys then?
ROBOTMEL'S WANTS LIST! PM ME PLEASE!
RID - Ultra Magnus (COMPLETE)
Classics - Mirage, Prowl, Ratchet (COMPLETE)
Alternity - Cliffjumper & Starscream (COMPLETE)
IDW Ongoing - #2a & #22b (VF/NM)
MARVEL Generation 2 - Halloween Special (VF/NM)