After reading a spoiler from some forum telling me what is going to happen in the movie through out it tells me that Shockwave is not actually the main villain. Spoiler After reading the spoiler it almost shows that Shockwave might not have that many scenes. From the looks of it he will just be like Brawl. It sounds like the real main villain help Megatron for something. I'm not going to tell you the name of this robot, but I'll only give you one word leading to who it might be... Spoiler Betrayal!