Originally Posted by DrDoom
If she still had Extremis, which she doesnt
I don't see why anyone thinks that definitively. All Tony said at the end of the film is that they got Pepper's problem "sorted out." That could mean that they removed the Extremis from her body. It could also mean that they stabilized her powers so they won't make her explode. It was vague enough that it could be interpreted either way in later films. I think that was the idea.