Originally Posted by kguillou
The thing is...RDJ is not young. He's already in his mid-40's, unlike his fellow Avengers who are all mostly in their very early 30's. So...i'd imagine that pretty soon--around the time of Avengers 2--he's going to want to move on.
Then again, the flip is that RDJ actually LOVES playing Ironman. He's not one of those actors who reluctanclty puts on the tights and just wants his paycheck. You can tell he loves this stuff. So who knows, maybe he wont be going anywhere anytime soon.
RDJ has really made the character what he is. On top of that he is just a great actor, it will be tough shoes to follow when and if they recast.