In Transformers: Prime the concept of Unicron being the core of Earth was introduced. In this teaser trailer we see part of something that resembles one of Unicron's horns in the desert. We also see a giant planet eating thing (I honestly don't know what to call it) attacking the moon. We see a shot of Cade and the others looking up as the surface around them is lifted up and into the air. This may in fact be a Quintesson weapon used to pull up the Earth's surface to reveal Unicron hidden underneath it. Could Unicron actually be the Earth's core? Here are some of my thoughts on how he could be retconned into all of this: - Unicron was guiding the Allspark to Earth so that he may "complete" himself. The Allspark consists of life-giving energy and power and, since Unicron is known in several incarnations as the harbinger of death, he could see this as a threat to himself and would want it destroyed. - He was the one who turned The Fallen to the "darkside" as it was on Earth where The Fallen betrayed his brothers. Perhaps The Fallen wanted the Matrix not to turn on the Sun Harvester machine but to deliver to his new master, who would then destroy it out of fear of it's power. - Now that Optimus Prime, the last living and remaining Prime, is all alone up in space there is no one on Earth who has the possibility of stopping the Quintessons from coming to Earth. The Quintessons sent Lockdown to Earth to retrieve Optimus Prime for the Creators. Once they had him in his possession there would be little opposition to their arrival on Earth (the Autobots bicker amongst themselves too often and do not respect Bumblebee as a leader, making battling the Creators a difficult task). Once at Earth they could use their planet buster to remove the Earth's surface and reawaken Unicron, who could retake his rightful place as ruler of the galaxy (or something cliché like that). What do you guys think about this idea? I know we've only got the one trailer and a handful of information from the set to go off of but it doesn't hurt to speculate. Sound off below and let me know your thoughts.