A fifth Transformers movie is already in the pipeline, and Paramount have announced it will be released in 2016.
Transformers: Age of Extinction is set to hit the big screen this summer, and is the first film in the series since Dark of the Moon back in 2011.
Age of Extinction will kick off a brand new trilogy, and planning on the sequel is already under way.
Michael Bay returned to direct the fourth film in the series - which will star Mark Wahlberg, Stanley Tucci and Nicola Peltz - but it is so far unknown whether he has agreed to helm the next instalment.
Bay previously stated that 'Transformers: Age of Extinction' would be the beginning of a new trilogy, implying that he would be working on the fifth and unannounced sixth 'Transformers' movies.
Wahlberg will take on the central role of Cade in the film, while Peltz in on board as his daughter.
Age of Extinction will mark the second time that Wahlberg and Bay have worked together, and the first since Pain & Gain last year.
Other Paramount films slated for release in 2016 include 'Paranormal Activity 5', 'Beverly Hills Cop IV', 'G.I. Joe 3', 'Hansel & Gretel: Witch Hunters 2' and 'Star Trek 3', The Hollywood Reporter has revealed.
'Transformers: Age of Extinction' is to be released on June 27.