With “Iron Man 3” breaking records at the box office on opening weekend and quickly surpassing the billion dollar worldwide mark it is little wonder that there’s a buzz about “Iron Man 4.” However, there seems to be a question over the lovably cheeky Tony Stark actor, Robert Downey Jr.

Downey Jr’s involvement has been in question since he said he would not return to Iron Man until after “The Avengers 2” is released in May 2015.

He told Entertainment Weekly, “I'd go start another one tomorrow, but it’s not tomorrow.

“And there are a lot of other considerations. But I also don't like the idea of leaving people hanging or leaving people in the lurch."

Downey is also attached to the third “Sherlock” movie as well as David Dobkin's legal thriller "The Judge" and Jon Favreau's foodie comedy "Chef."

He said, “My intent is to launch another franchise, independent of any that I can even imagine right now.

“My intent is to dominate the playing field for as long as I can, with my own challenges, with myself.”

As exciting as his plans are Marvel has already made it clear that they will go ahead with “Iron Man 4” with our without Downey Jr. Although it would be rebooted, in the style of James Bond, Downey Jr has become massively identifiable as billionaire Tony Stark.

Marvel Studios president Kevin Feige said, “I believe there will be a fourth 'Iron Man' film and a fifth and a sixth and a 10th and a 20th.

“I see no reason why Tony Stark can't be as evergreen as James Bond. Or Batman for that matter. Or Spider-Man. I think Iron Man is a character just like that."

In honor of the possibility of losing Robert Downey Jr, here’s Tony Stark’s top ten quotes