Three new 30 second TV spots have been released for Transformers: Age of Extinction and they offer only a bit of new footage, but they do give us (I think) our first really good look at Kelsey Grammer, who's the film's new Big Bad.
Putting together his appearances here and what we now know is his voice asking ominously, "I'm going to ask you this once – where is Optimus Prime?" it appears he's the head of whatever shady organization is trying to wipe out all the Transformers for whatever reason.
Yeah, that's not gonna happen. At least not for another 2 movies.