A lot of people are interested in all the MCU movies but they are not too comfortable about the thought that there are other actors who will be replacing the actors that are already well-known. Robert Downey Jr. plays Ironman and according to some sources, he has a 6-movie contract deal.
]It seems that he will still be part of Infinity War and possibly Avengers 4. Only time will tell if the two parties would agree that he would sign up again for another contract. If this happens, then a lot of people will be happy. People are already accustomed to Downey playing Iron Man.
It is unknown at this time if Robert Downey Jr will renew his contract with Marvel. Robert Downey Jr plays Iron Man in Marvel's blockbuster hit film series Avengers and has been signed with Marvel for more than a decade.
It seems strange to think that they would not renew their contract considering how identifiable he is in the role of Iron Man. There are some actresses and actors that just take on the character persona so well that replacing them is impossible. Many people think Robert Downey Jr as Iron Man is one of them.