A few Twitter posts, including those by ImNotAutistic show that the captain America: Civil War armor of choice for Iron Man will, indeed, be the Bleeding Edge armor so beloved from the comics.
Check out this screenie showing the chest plate from the Bleeding Edge armor (as well as a scaled version of Cap’s suit, a la the comics):
And then there’s this shot of RDJ himself in the Bleeding Edge armor itself onset:
So, Iron Fans, this is pretty definitive news- do you like the idea of the Bleeding Edge armor? It’s definitely something formidable for Tony to use when things fall apart between he and Steve!