Earlier this month during the interview with Esquire, Robert Downey Jr. expressed his willingness to rejoin the Marvel Cinematic Universe, stating he would be "happy" to step back into the role of Iron Man. He emphasized how much the character means to him, saying that it's deeply woven into his identity and that "the role chose him."

He also noted the influence of Marvel Studios' president, Kevin Feige, commenting, “Never, ever bet against Kevin Feige. It is a losing bet. He’s the house. He will always win.” These statements suggest Downey's enthusiasm for the MCU and his respect for Feige's vision and leadership.

Iron Man's Death An MCU Plot Hole? Why Tony Stark Had To Die In Endgame

In the climactic battle of "Avengers: Endgame," Iron Man sacrificed his life to defeat Thanos (Josh Brolin) and his army, using the Infinity Stones to turn them into dust. This ultimate act of heroism marked the end of Tony Stark's journey in the Marvel Cinematic Universe.

Joe and Anthony Russo, the directors of "Avengers: Endgame," have expressed that they wouldn't know how to bring Iron Man back, given that Tony Stark's farewell was intended to be final and conclusive.

I don’t know how they would do it,” Anthony Russo explained. “I don’t know what the road to that would be.

I mean, we closed that book, so it would be up to them to figure out how to reopen it,” Joe Russo added.

Joe Russo Anthony Russo Interview – The Directors Talk About Their Career  From 'Arrested Development' to 'Captain America: Civil War'

The reaction from fans on X to the Russo brothers' comments about not reviving Iron Man was mixed, with some expressing disappointment. Many pointed out that the Marvel Cinematic Universe has explored the multiverse and variants, providing avenues to bring back Robert Downey Jr. without invalidating the storyline from "Avengers: Endgame." One fan emphasized that Marvel has creative solutions to reintroduce Iron Man without undermining his heroic sacrifice. 

In "Deadpool 3," Hugh Jackman returns as Wolverine without undoing his death in "Logan" by playing a variant from a different universe. This shows that Marvel can bring back a character without affecting their original story's ending.

Similarly, Robert Downey Jr. could return as a new Tony Stark variant from another universe. This approach would let him reprise his role as Iron Man without interfering with his sacrifice in "Avengers: Endgame." The multiverse allows for this kind of creative flexibility, giving characters a chance to return while respecting their original storylines.

Robert Downey Jr: No Plans for 'Iron Man 4'

Although Marvel Studios hasn't announced any plans to resurrect Iron Man at this point, the future of the Marvel Cinematic Universe is constantly evolving. With the concept of the multiverse opening up a world of possibilities, it's entirely conceivable that Iron Man could return in some form down the line. For now, Marvel hasn't indicated any intention to bring Tony Stark back, but fans know to expect the unexpected in the MCU. Only time will tell what the future holds for Iron Man and other iconic characters.