I've taken snapshots of the comicon footage as best as i could to find out what we are getting for the war machine armor.
Here we can see Rhodes placing an arc reactor into what looks like the mk. II. this shot was only a split second and i didnt notice it at first.
Better Look
What looks like the mk. II disassembled on a table while he's talking to Hammer
All snapped from the ending scene

Here we can see Rhodes placing an arc reactor into what looks like the mk. II. this shot was only a split second and i didnt notice it at first.

Better Look

What looks like the mk. II disassembled on a table while he's talking to Hammer




All snapped from the ending scene