Iron Man got a new costume - to the best of my recollection - around the time the first Iron Man movie came out, so it's only natural for Tony Stark to be getting some new wears in time for the sequel. I like the look: very streamlined and futuristic.

"The inspiration for the new design came from thinking about a sleeker, leaner, tougher Iron Man," revealed Fraction. "If technology is increasingly getting smaller and lighter it seems like the Iron Man should do the same: ergonomic and aerodynamic. We were looking for something that felt as sleek and glossy as a sports car Tony Stark would covet. I love what we've come up with. It feels like the next evolutionary step in the Iron Man's design."

It looks like the new armor premieres in Invincible Iron Man #25.