There are a lot of reports surfacing online about Iron Man 4 and Robert Downey Jr.'s take as Tony Stark. As it has been said that the 51-year-old The Avengers star is not going to reprise his iconic role, there are news that he could make up to $100 million if he returns as Tony Stark.

A source close to the film's production revealed that Downey can earn up to $100 million and more if he reprises his role as Iron Man. In fact, the actor can even double this amount that for the superhero's merchandise and other Marvel deals. "Marvel knows that he is their quarterback for these films leading the fans through the adventures," the source said.

The insider even explained that Marvel would definitely have a hard time to find the perfect actor that could replace Downey in Iron Man 4, NY Daily News reported. The Captain America: Civil War star has already marked the Iron Man role as he already done its three previous films and even seen in armor suit in the Avenger films and the upcoming Avengers: Infinity War - Part 1.

In fact, his on-screen partner Gwyneth Paltrow, who played the role Pepper Pots in Iron Man franchise, believed that no one can take Downey's place and the amount said is worth it. "Look, nobody is worth the money that Robert Downey Jr. is worth," she told Vanity Fair in 2015.

Meanwhile, Movie Pilot reported that Iron Man 4 will be definitely in the works in the near future. This claim can even be supported by the Marvel's Phase 3 schedule that includes an untitled movie yet that is set to be released in 2019 - which a lot believed to be the fourth Iron Man film. Downey even admitted that he still can do one more of the superhero movie.

The president of Marvel Studios Kevin Feige even admitted that they don't have to decide yet who would take play the role of Iron Man in its next installment. If truth be told, he explained that there are a lot of Marvel movies that everyone already signed for. "Robert Downey Jr. is Iron Man and right now I can't envision anyone else," he firmly disclosed.