http://michaelbay.com/?p=1301

HOLLYWOOD, CA (November 8, 2012) – After an exceptionally successful collaboration on the upcoming “Pain and Gain,” Michael Bay has cast Academy Award®-nominee Mark Wahlberg in the highly anticipated “TRANSFORMERS 4.” The film will hit theaters June 27th, 2014.
“Mark is awesome. We had a blast working on “Pain and Gain” and I’m so fired up to be back working with him. An actor of his caliber is the perfect guy to re-invigorate the franchise and carry on the Transformers’ legacy,” said Bay.
Bay will direct the next installment in the “TRANSFORMERS” series, which begins shooting next spring. From Paramount Pictures, a division of Viacom, Inc., in association with Hasbro, the film will be produced by Don Murphy & Tom DeSanto, Lorenzo di Bonaventura and Ian Bryce, and executive produced by Steven Spielberg, Bay, Brian Goldner and Mark Vahradian.
Bay’s first “TRANSFORMERS” film was a box office sensation in 2007, opening at #1 and earning more than $700 million worldwide. His second installment “TRANSFORMERS: REVENGE OF THE FALLEN” in 2009 grossed more than $830 million worldwide. In 2011, “TRANSFORMERS: DARK OF THE MOON” was an even bigger hit worldwide, grossing more than a billion dollars to become the 5th highest grossing film of all time. To date, the franchise has earned more than $2.6 billion worldwide.
From acclaimed director Michael Bay comes “Pain and Gain,” a new action comedy starring Mark Wahlberg, Dwayne Johnson and Anthony Mackie. Based on the unbelievable true story of three personal trainers in 1990s Miami who, in pursuit of the American Dream, get caught up in a criminal enterprise that goes horribly wrong. Ed Harris, Tony Shalhoub, Rob Corddry, Rebel Wilson, and Bar Paly also star. The film is based on magazine articles by Pete Collins, with a screenplay by Christopher Markus & Stephen McFeely and produced by Donald DeLine, Michael Bay and Ian Bryce.
“PAIN AND GAIN” opens in theaters everywhere April 26th, 2013.

WTF there going to be transformers 4? i thought they were done after 3?

Yup I heard.

@geoff2005 said:

WTF there going to be transformers 4? i thought they were done after 3?

It was going to end with the third but because of how much money it made I think Paramount demanded another one.

@MrDirector786 said:

@geoff2005 said:

WTF there going to be transformers 4? i thought they were done after 3?

It was going to end with the third but because of how much money it made I think Paramount demanded another one.

cool, hopefully mark wahlberg puts his creative input in to make the movie great. I enjoy all 3 but felt that last 2 were okay...

Well I think it was pretty much expected they where going to change the human characters around.But changing the "main" human is not going to improve the film.I would like to see changes that actually make a difference to the film but with three films already made I doubt Bay is going to change things that are really important.

As a fan I would still like to my statement to become false,only time will tell I guess.

Because this has relevance to this I'll share this link as well.

http://www.mtv.com/news/articles/1697083/mark-wahlberg-transformers-4.jhtml

Here's a brief statement Wahlberg had about being in the movie.