wow. these look amazing.

 

I have a feeling that's what it's going to be, in that order. Especially since they keep showing Scavenger and Bonecrusher more than the others.

 

Well, profile-wise he is perhaps the least likely Constructicon I'd expect to switch sides. Hook or Long Haul are pretty normal guys who just do their jobs, and Scavenger is someone who has a desperate need for friends or to fit in, so I could buy any of them joining the Bots before the guy whose favoruite activity is smashing buildings and their occupants, and then going back to grind what's left into dust.