Optimus Prime finds Cybertron, now dead after the events of Dark of the Moon and learns that an artifact on Earth can revive the planet. "Somehow the artifact ties into Merlin, the magician of King Arthur lore. Apparently, the power of magic was given to Merlin by a Transformer and somehow the artifact ties into this." (I read that as a Transformer created artifact gave Merlin his magical power).
Bumblebee is in charge of the earth bound Autobots which includes Hound, Crosshairs, Drift, Dinobots and "mini-dinobots". New Autobots with "English" (UK) origins are called "The Creator" (no alt mode suggested), Cogman with English accent (Astin Martin alt mode), and Squeaks (Vespa alt mode). Main villain is Megatron, no mention of who his Decepticons might be.
Transformers: The Last Knight Story and Character Rumor
A new article on JoBlo.com reveals the possible plot and some character information about Transformers: The Last Knight. The usual grain of salt take applies until get more info to collaborate the rumor but just in case SPOLIER WARNING. Highlight below to read the summary or click the video.