"Iron Man 4", one of the epic Marvel films will be arriving in theaters by 2020. This recent news was confirmed by Robert Downey Jr., an Iron Man lead actor during the Ellen DeGeneres show. For many years, fans have waited for another sequel and it is good to know that it is just a few years away before it hits the big screen.

During the past reports of Marvel Studio last year, it can be recalled that Phase Three didn't include the fourth sequel of "Iron Man" into the line-up. However, just recently, a surprising news came in that there is now a development for the fourth sequel and that Robert Downey Jr. who played as Tony Stark might be replaced by Riri Williams for some definite reasons, MStar News reported.

It was also previously reported that Downey may have to reprise his role in "Sherlock Holmes 3" and if it would happen; the actor may need to stretch his time and schedule in order to make time for his lead role as Tony Stark, Celebeat reported.

As of now, the filmmakers are working on the casting, shooting, editing and all preparations of the upcoming film. Some underwent workshops in order for the actors to connect with their characters on the movie.

Fans also waited for the time that Downey will have to wear his red metal suit again. Further, despite the recent confirmation of "Iron Man 4" airing, nothing much has been said about the Marvel superhero movie.

Downey's schedule as of this time is one of the issues whether or not he'll take the role again. As per source, he still has his "Spiderman Homecoming" and "Avengers Infinity War" among the line-up. However, the actor also teased that he could still make the fourth sequel after all these films will be done.