This has led to a feeling that the actor will soon step down as the character in the near future, especially since he appears to now be on a film by film contract with the studio.
Speaking with News.com.au, Robert Downey Jr. said that he'd essentially like to retire from the MCU "before it becomes embarrassing". "I just want to hang up my jersey before it's embarrassing". At 52-years-old, it might be a nightmare for Downey to keep his physique in superhero shape.
"It's this cyclical thing", he went on to explain. "Everybody stop". But to me it's always about people and opportunities, like the (Avengers directors Anthony and Joe) Russos, who I adore".
Robert Downey Jr has been playing Iron Man since the 2008 solo film - the movie which kickstarted Marvel's Cinematic Universe. I could have said when the first Avengers came out: "It's never going to get any better than that".
"Avengers: Infinity War" stars Robert Downey, Jr., Chris Evans, Chris Hemsworth, Mark Ruffalo, Jeremy Renner, Scarlett Johansson, Tom Holland, Elizabeth Olsen, Paul Bethany, Sebastian Stan, Benedict Cumberbatch, Benedict Wong, Chris Pratt, Zoe Saldana, Karen Gillan, Vin Diesel, Dave Bautista, Bradley Cooper, Pom Klementieff, and Josh Brolin.
For now, we'll have to wait and see... but he's due to appear in "Spider-Man: Homecoming" as well as the next two "Avengers" movies. You know, the one that was teased in the Marvel One-shot. As recently as last week Kevin Feige admitted that Avengers: Infinity War will be the final chapter for some of the Marvel superheroes, which only exacerbated the belief that either Captain America or Iron Man will die in it. The new movie, which also features Michael Keaton, Marisa Tomei, and Zendaya, is set for release this week.