There is a lot of responsibility resting on the shoulders of Iron Man 3. Not only does the movie have to make up for Iron Man 2 it also has to launch Marvel’s second phase in a post-Avengers world. So the movie not only has its own problems but needs to justify the solo movie in a world in which the audience knows that there is a hero around every corner.
So far Marvel Iron Man 3 looks to go into Iron Man Rises territory with Stark being defeated by an enemy who has ties to the first Iron Man movie (the ten rings have been hinted from the very beginning). Iron Man 3 will have a lot of different Iron Man suits (and a cynic might say that it is to sell more toys… which is probably one of the reasons) and aside from Tony’s golden armor which is featured in the trailers a new concept art has been released (via Comicbookmovie):