"I think he'll be back for another one. I'm sure of it," Black told Bang Showbiz.
There has been recent question as of late if Robert Downey Jr. would return for Iron Man 4 as most recently the actor questioned how much longer he would be involved.
He recently talked with GQ about retiring from the character.
"This period of time, this shall pass," Robert Downey Jr. said. "Fortunately I've been around the block enough -- I'm not ill-prepared. And I love change. I love it when a lightning bolt hits the genny and you're down for two hours on the set. Now, this isn't a lightning strike, this is like the warning of a gathering storm."
The gathering storm would be referring to the injury the actor suffered on the set while filming Iron Man 3 which resulted in a twisted ankle.
"It got me thinking about how big the message from your cosmic sponsor needs to be before you pick it up," he continued. "How many genre movies can I do? How many follow-ups to a successful follow-up are actually fun?"
Robert Downey Jr. is also not officially signed on for The Avengers 2, but talks are underway.
"Me, the agents and the lawyers are having a bit of a ball right now," he said.
With Black's stating that he is sure Robert Downey Jr. will back, that could possibly also hint that the director will return for Iron Man 4 as well.
It's also been said that when Downey Jr. does decided to hang up his repulsor blasters, that Marvel Studios will go in a direction similar to James Bond, in that they won't totally reboot the character.
Head on over to the Cosmic Book News The Avengers Movie Hub for more news, images and trailers.
Marvel Studios’ Iron Man 3 pits brash-but-brilliant industrialist Tony Stark/Iron Man against an enemy whose reach knows no bounds. When Stark finds his personal world destroyed at his enemy’s hands, he embarks on a harrowing quest to find those responsible. This journey, at every turn, will test his mettle. With his back against the wall, Stark is left to survive by his own devices, relying on his ingenuity and instincts to protect those closest to him. As he fights his way back, Stark discovers the answer to the question that has secretly haunted him: does the man make the suit or does the suit make the man?