A new report reveals some pretty exciting plot speculation for 'Transformers 5.' There have been strong suggestions of one of the sequels to Transformers: Age of Extinction taking place in cybertron, with Optimus Prime off to meet his creator, which begs the question: who will play the leader of the Transformers on Earth? Could A Transformers Sequel Be Set In Cybertron With New Characters? Reports hint at Ultra Magnus making for the most likely candidate and this might mean that he would play a pivotal role in a sequel if it were to place on earth without Optimus Prime.