Though nobody ever likes to think about it too much, we must all realize that there will come a day where Robert Downey Jr and Chris Evans will become too old to don the iron suit or armor or wield the vibranium shield. When that day comes, Iron Man and Captain America will live on in the MCU, one way or another.
Will these roles be replaced, or recast? These are two different things by the way.
Recasting the role would mean someone else would take over and play the same part. We’ve seen this before with the likes of Edward Norton’s Hulk, and again with Terrance Howard’s James Rhodes. Now replacing the role would be more like the ceremonial passing of the torch. This could be seen with Steve Rogers dubbing Bucky Barnes the new Captain America.
“It’s almost impossible to replace Robert, he’s the biggest movie star in the world. One close up from Robert is worth another actor’s entire performance, he’s incredibly gifted and insanely talented,” Joe Russo continues. “I think if and when he is done with the character I think you will find that Iron Man might disappear for a while. I think the only way that you could reboot that character is to give a generational gap that would allow another actor to at least have a chance to redefine that character without the enormous spectre of Robert hanging over it. There are so many characters in the Marvel universe that can pick up the ball and run without it through the next phase or two before you need to see Iron Man again, frankly.”
Marvel does have a plethora of characters of which they can pull out for a role on the big screen before they need to recast characters who can run the show. There are already several characters reportedly being added for Avengers Infinity War.
Captain America: Civil War hits theaters May 6th.