The Expendables 4 will begin filming this summer.

In a recent interview, Randy Couture – who has starred in the previous three Expendables movies as the mega-hench Toll Road – confirmed the next sequel is aiming for an August start date for filming.

He also implied filming will probably take place on location in Bulgaria once again.

"I'm excited about Expendables 4," he told The Arnold Fans. "Right now, we're scheduled to start filming in August and hopefully we're able to stay on schedule.

"It sounds like we're coming back to Bulgaria, which is exciting. I've spend a lot of time in Sofia and Varna and I'm excited to come back.

"I love the people (there), I love the food and I'm excited to come back."

Warner Bros.

For a hot second, it looked like Sylvester Stallone wouldn't be back for the fourth outing, reportedly due to disagreements with producer Avi Lerner about the direction of the movie last year.

It ultimately led to the project being delayed and Stallone almost walking away from the franchise.

However, it appears both the film and Stallone's participation appear to be back on track despite Stallone signing on for Creed II in October last year, originally to direct (fun fact: the first Creed film was directed by Black Panther's Ryan Coogler).

This content is imported from Instagram. You may be able to find the same content in another format, or you may be able to find more information, at their web site. View this post on Instagram Just when you thought it was safe to go outside…They’re coming back! A post shared by Sly Stallone (@officialslystallone) on Jan 12, 2018 at 10:12am PST

But earlier this year, Stallone shared an Instagram post appearing to suggest things were back on track, writing: "Just when you thought it was safe to go outside…They're coming back!"

Arnold Schwarzenegger previously said he wouldn't return to The Expendables if Sly didn't, so we don't know where he stands with that decision now Sly is back in.

Amanda Edwards Getty Images

And outside of Couture and Stallone, it's not known which cast members will be returning for a fourth Expendables movie.

But we can't wait to find out.

Want up-to-the-minute entertainment news and features? Just hit 'Like' on our Digital Spy Facebook page and 'Follow' on our @digitalspy Twitter account and you're all set.