This might not be the news you wanted but it is the news you are getting anyway. Fans who long awaited to see a glimpse of the theatrical Iron Man 4 has been declined by Robert Downey Jr. himself. He stated this in an interview with Variety.
Robert Downey Jr. confirmed all suspicions that there are no plans for another Tony Stark film (at least not a solo one, although he will reprise his role in Avengers: Age of Ultron and Avengers 3).
“There isn’t one in the pipe”, he said, plainly. “No, there’s no plan for a fourth Iron Man”. Well now that he has cleared suspicions about Iron Man 4, we must find something else to cling on to.