Brainiac
Super Freak
I think they did that because they didn't want Iron Man stealing the show from the off by having a flash new suit. As it turned out he kinda stole the show anyway just because RDJ has massive screen presence (and then he donned the Mk VII and proper stole it).
It's hard to tell how they'll position him in Civil War, after all he is the main antagonist (or so I believe) so he'll need a 'darker' suit to match in that movie.
Like the Marvel Now suit.....
What about the MK45 with the Marvel Now color scheme