"The Expendables 4" is currently in development, but the movie has been a subject of various rumors and speculations ever since it was announced.

According to a report from SlashFilm, the movie is planning to shoot the scenes in China. There are also some major changes in the movie's cast, particularly involving its lead, Sylvester Stallone.

Stallone recently won a Golden Globe award for his performance in "Creed." With this movie's success, a sequel has been planned, and this might clash with Stallone's commitment to the "The Expendables" franchise.

With that said, rumors are rife that Stallone might not be present for the next installment of the movie. If that happens, co-star Terry Crews, who was part of the third installment, will support Stallone all the way.

"He might," Crews said. "He might, but whatever Sly says I'm doing. He's like my dad. He's literally my dad in the business. If Sly's like, 'I'm out of this thing,' I don't see myself doing it."

Much about "The Expendables" are purely rumors at this point, especially when it comes to the actors who will be part of the next installment.

Among the rumored actors set to appear in the film are Hulk Hogan and Pierce Brosnan. Recently, John Cusack became part of the rumor mill. When asked by ManlyMovie if he's interested to join the project, the "2012" actor answered, "What's my price? What do I have to do in it? Do I throw a nice in someone's chest and say "stick around"? I think I can do it."

As for the release date, nothing specific has been announced yet, but according to Variety, the film will be released in 2017. The official cast has not been announced, but the publication reported that the production is expected to feature an all-action star ensemble. The budget for the film is also said to be more than $100 million.