After three successful movies as the witty and fast-twitching Sam Witwicky, Shia Labeouf will no longer be part of the fourth Transformers movie, handing over the reins to Mark Wahlberg, according director Michael Bay.

The fourth movie of the blockbuster franchise is set to be released on June 27, 2014. While it will still be focused on the never-ending robotic slugfest between the Autobots and the Decepticons, news of Wahlberg taking Labeouf's place as the main human character appears to suggest that the franchise is headed in a different direction.

It's still billed as a sequel to the Dark of the Moon, although much of what we've come to know about the three movies is set to receive a major shake-up now that Sam Witwicky and his nervous twitches will no longer be around to entertain us.

As far as the robots are concerned, there hasn't been an announcement on any new cars that will be part of the fourth movie, and if this fourth installment is going to be set as a sequel to the last movie, we're expecting the star Autobots - Optimus Prime and Bumblebee, to be exact - to return in their normal guise.

As always, every Transformers movie has new cars added to it. So we don't expect anything less from the fourth movie. Maybe a throw down between a Lamborghini Aventador->ke3624 Autobot and a McLaren MP4-12C->ke3514 Decepticon is in order?

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