Iron Man 3 was great. The best blockbusters of 2013. The fans crying and tearing him down on the other side got boring and annoying very soon. Even though it was fun seeing them so blindly upset about something Shane Black was very open and willing to explain in discussions. He knew what he did with that twist, why he did it, and how it all ties in and respects (and at the same time reconstructs in a very smart way) into the comic book lore. It was a timely adaptation of not only the comic book character, but how he's perceived in today's society (even before the movie, HOW MANY people have you heard calling him a somewhat racist stereotype) and the similar 'characters' existing in today's real world. The twist didn't, in any way, make him a less threatening villain. It just deceived you in that you believed in the media (the guy on the TV) and the stereotype being the bigger threat, when in reality there is and could be other people behind it. Killian was the Mandarin. And they even put in lots of hints at that (his long haired-beard look in the video Tony finds on the server, etc.). And I LOVED the Extremis plot.
And after he delivered such a unique and subversive installment in the Marvel/Iron Man franchise, are you people really wondering about him simply making a remake of the first movie? First movie, which he was even involved with? This guy's got some tricks up his sleeve, I tell you. And amidst all that, I couldn't be more excited to see him re-team with Fred Dekker (who I'm glad is getting a chance in the biz again - despite RoboCop 3, he didn't deserve to be basically thrown out of Hollywood).
P.S.: I kinda wish he would've rather written & directed a new Die Hard, as well. That franchise needs some redemption. But maybe he was in talks for that (it was rumored), but didn't like what was on the plate.