I will admit that I no virtually nothing about Iron Man with the exception of the two Iron Man films, and The Avengers, however, after watching this trailer, I can promise you that I will be one of the first in line to see this...
This trailer offers so many more shots that we have not seen previously, including:
-The Iron Army
-Iron Man's new suit
-More of The Mandarin
-The Iron Patriot
And perhaps a possible tie-in? If you look at the 0:44 mark, when the Mandarin takes off his hood, you can see what looks like Captain America's shield tattooed on his neck.
What I am looking forward to most in this film is the fact that this is looking to be all drama. While the other two films certainly had their fair share of drama, they also had their fair share of laughs. Judging from everything we have seen from this trailer, it is going to be taken dead seriously with little to no humor. Tony Stark is at his all-time low, and for a film that could very well be the last in the franchise, it is a promising attribute.
And let's just be honest, those last few seconds? Oh my god yes.
Iron Man 3 comes out on May 3, 2013