Michael Bay has confirmed that Transformers 4 will be a sequel to Dark of the Moon and that it will be the last one he intends to direct. Because of the events from the third film, Bay needs to have Sentinel Prime return as a reformed character helping Optimus Prime and his new squad of autobots deal with the decepticon threat that made him choose to turn on them in the last movie. The film is to have more autobot and decepticon characters as some of them are said to be redesigned. The film's main plot is to be about the hidden group of decepticons taking revenge on the human forces by using allspark energized bombs to turn all military vehicles and aircrafts against them and to wipe out every soldier within every military bases vicinities and turn the planet Earth into a new Cybertron.
In support of the plot the best title for the film is expected to be called
Transformers Rise of the Predators

As you should know, the Preadators (NOT the Predacons) are a group of decepticons led by Skyquake who should serve as the fourth installments main villain.
Be sure to have Michael Bay get a look of this while there is still time!