IRONMAN 4 Teaser and Trailer

A mysterious poster has some thinking Iron Man 4 could be the next MCU project to get a release date.

Marvel Studios' take on Tony Stark (played by Robert Downey Jr.) was a mainstay of the super-powered franchise for over a decade, jumpstarting what would ultimately become the MCU.

However, after three solo films and several team-up efforts, the character's big-screen tenure seemingly ended with the death of Downey's Marvel hero in Avengers: Endgame, indicating there would be no plans for any future Iron Man movies.