"Transformers 4" will set off in a new direction. Shia Labeouf won't be reprising his role here and Mark Wahlberg will take over as the main lead actor. It is said that this new "Transformers" movie will actually be the first installment of a new set of the Transformers movie.

In "Transformers: Age of Extinction," Wahlberg's role is a mechanic who works hard to put his daughter in college. Not long, father and daughter make a discovery relating to the Autobots, forcing the NSA to capture them. The major characters will be embroiled in the battle between good and evil as they face extinction.

The official trailer of the movie gives subtle hints as to what can be expected in the fourth installment of "Transformers." Optimus Prime and the Cybertronian are hiding underground as they are being hunted by the government. But of course, the Autobots will resurface to save mankind once again.

Moving on to the possible spoilers, rumor has it that the Dinobots and Galvatron will appear in "Transformers 4." According to ScreenRant, Lockdown will pilot a ship containing decommissioned Transformers. The Dinobots are on this ship and Optimus Prime and Bumblebee will try to revive T-Rex, Grimlock and Pteranodon Swoop. Meanwhile, the presence of the Dinobots might change the minds of Decepticons Ravage, Driller and Scorponok for the better.

Another rumor suggested that Optimus Prime and Bumblebee will ride Grimlock and Spoof to a battle in Hong Kong. While cool, but highly unlikely due to Optimus Prime's flight capability, this might just be a marketing effort from Hasbro, says ScreenRant. They might come out with toys that pair the Autobots and Dinobots together.

What about Megatron? Believed to have died in "Transformers: Dark of the Moon," rumor has it that Megatron will resurrect as Galvatron. Further, two new robots will be added, namely Hound, an Autobot and Samurai, a Decepticon.

"Transformers: Age of Extinction" will be released on June 27, 2014.