After the release of the Transformers 3 movie, it was claimed that Michael Bay was walking away from the franchise and handing it over to someone else. Once Michael stated that he was leaving, Shia LaBeouf soon followed suit and vowed to leave the Transformers franchise.
However, Michael Bay has since had a change of heart and decided that he would in fact have a crack at directing Transformers 4. Michael did decide that, while he was returning to direct Transformers 4, he would be using an all new cast, including both humans and robots.
Michael Bay recently directed Mark Wahlberg in the movie Pain & Gain and, following all of the internet rumours about Mark being in Transformers 4, Michael decided to share his ideas for the project with Mark and asked him if he would be interested in being involved in the project.
Wahlberg told Digital Spy, "Michael made that movie for $25m and then he asked me if I wanted to work with him again, told me his idea and I said, 'I'm in'. It's very different from the other three." Transformers 4 is set to quick off a new Transformers trilogy, when it hits the big screen on June 27, 2015.