Robert Downey Jr. has signed an agreement for upcoming "Avengers" movies but the "Iron Man 4" movie is still up in the air. There have been reports suggesting that Arno Stark will replace Tony Stark if the "Iron Man 4" production starts while Downey is contractually bound to do "Avengers 3." However, recent reports reveal that Downey Jr. might just not go through the fourth Iron Man installment.

"The Superhero Show" hosts Daniel Krupa and Chris Tilly revealed about the possibility of a new Iron Man sequel after Tilly mentioned his recent interview with "Iron Man 3" writer, Drew Pearce. The screenwriter did not seem very sure about a new sequel because it is possible that Downey Jr. is not just up for it. The question on whether or not Downey Jr. would star in a new Iron Man movie came from a fan who wrote the Superhero Show hosts, asking if the character would be replaced by either the Black Panther or another actor just like how James Bond gets replaced all the time.

"I think a lot depends on the character. It was interesting interviewing Drew Pearce - the screenwriter of Iron Man 3 - the other day that he almost had to stop himself," Tilly explained on the video posted by IGN. "I asked 'Would you direct an Iron Man movie in the future and he almost had to stop himself. I feel like he was saying that Robert Downey Jr. does not want to do another one in which case he does not think there will be another one or certainly not for a long time.

"I believe there will be a fourth Iron Man installment. Even a fifth and sixth and a 10th and 20th," Marvel Studio's President of Production, Kevin Feige previously said. "I do not see any reason why Tony Stark cannot be as evergreen as James Bond." It is also possible that while the plot will not change and focus on Arno Stark, the producers could just cast another actor for Tony Stark.

"I have said it before and it was not negotiating tactics. I believe Tony Stark is just as strong a character as batman. So there will absolutely be future Iron Mans and future Tony Starks. Who makes the movies, when those films are made, who knows? I do not know. But, the notion with Downey's contract in The Avengers 2 and 3 is to allow new characters, Part of what we like about The Avengers is the shifting roster. That is what's fun about comic book films. You shift them up. Certainly, a lot of thought process went to it," Feige said.