In May this year, Jean-Claude Van Damme gave Sylvester Stallone and Avi Lerner an idea that he could play the antagonist again in The Expendables 4 and portray a brother of Jean Vilain, Claude Vilain. However, the year 2020 has seen some major developments on the way of making The Expendables 4. Randy Couture announced in March this year that the script was finished in 2019, but that negotiations are ongoing with producers. The film was originally scheduled to commence production by April 2019, though in July of the same year the Rambo announced he was beginning to work on the project. Sylvester Stallone announced in January 2018 the development of another Expendables movie on his social media page, confirming his return to the film series. In April 2017, supporting star Arnold Schwarzenegger said he would not be returning for the fourth film without Sylvester Stallone. On the other hand, it was announced in March 2017 that Sylvester Stallone would be leaving the franchise due to disagreements over the script and direction of the franchise. However, he announced in an interview in December 2016 that The Expendables 4 will be the last in the series, while it originally had scheduled a release for a 2018 date. The Rambo actor stated in August 2014 that there is the potential for least two more Expendables movies, before the franchise expands into spin-offs.

Sylvester Stallone revealed his first choice for the villain was Jack Nicholson in The Expendables 4, the movie which was said to be retaining the R-rating.

He added that he was not sure if he would join that film saying, 'I have no idea which one it would be, I just said yes.' James Bond star Pierce Brosnan stated in March 2014 that he had agreed with Avi Lerner to star in The Expendables 4 movie.

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