The Expendables series of movies is famous for being a hark back to the days of the big spectacle 80s action hero, when juggernauts fought on top trains and shot down helicopters - before things got all clever and Paul Greengrass-y in the 2000s.
But with Stallone and Schwarzenegger now 67 and 66 respectively, might this be the time for a new generation to take over? The new movie is subtitled One Last Time, after all.
See Also - Hulk Hogan for Expendables 4?
The trailer for the new movie introduces quite a few new faces - check it out here, and then read more on the latest arrivals below:
So who are the new arrivals?
Well first up, one of the more recognizable faces:
Smilee: Kellan Lutz who appeared in the Twilight series and was also in The Legend of Hercules earlier this year.
Mars: Victor Ortiz a boxer of Mexican decent who is the former WBC Welterweight Champion.
Thorn: Glen Powell, who played a trader in The Dark Knight Rises.
Luna: Ronda Rousey, possibly the toughest of the bunch, a MMA fighter and Olympic medalist in Judo.
So what do you think?
Are these guys capable of stepping into the shoes of Schwarzenegger and Stallone - or are they just filler for a movie featuring the more heavyweight stars?