Maybe? But I think having that, in a teaser, would be a bad idea, unless it would be like, a really small bit. Maybe something like this:
We see a black screen, and hear the sound of a hammer hitting metal, light at first, and then heavier. After about the fourth one, the screen flickers with light each time, and words show on the screen.
"Summer 2008...
It will be proven.....
Once and for all....
Heroes aren't just built....
They're forged. "
From that, we get an in-helmet HUD glimpse, followed by a quick survey of the surroundings, and then we see Iron Man blast off, then shoot the camera with a ray.