'Iron Man 4'

[EricJ]

Originally Posted by Walts Ghost

Firstly, when the former was asked about whether he would be interested in working with Marvel again either on Iron Man 4 or another movie, he said: "Well, Marvel would have to ask me because they're famous for not working with the same people twice, and who's to say they would ever approach me so that's something we'll cross when we come to it."

Even from the trailers, I'm getting the distinct vibes that There Ain't Gonna Be No 4.
It's got that Dark Knight Rises feel where they blow everything in the hero's universe up to kingdom come, just so he can find some Ultimate Realization about himself, get back on his feet to finally shut up the "I will ultimately destroy your private life" boss-villain for personal accomplishment, and they can wrap up the trilogy with the hero finally getting some new techno-upgrade to match his newly rebuilt HQ and new realization about himself.

(Which makes sense, as Marvel wants to move on to finishing the other existing solos and start getting to work on that delayed Wave 2. Sounds like a good plan to me.)