Superion in Generation 1 is known to be the first combiner and special team for the Autobot forces. He is an Autobot formed by the combination of 5 Autobot jets. Air raid, fireflight, silverbolt (the leader), skydive and slingshot form this massive robot. He is known to be the only defense against Devastator aside from Unicron and Primus (Planet cybertron Gen 1). If we know of Devastator to be in the movie the only logical way I see him to be defeated is to introduce Superion and by the looks of this toy Bay just might deliver. If you look close at the back picture it explains how each and every Autobot's personality makes up all aspects of Superions personality.
Just for you who haven't seen Devastator yet here he is (just the toy sorry)