Never got total confirmation, but I'm pretty sure that was a new mold never used on a released figure--the Iron Man Mark II 2.0 without the sculpted rivets--which is something HT really should (probably will) release in red/gold as a regular release sooner or later.
For sure. If they *did* make a new MKIII mould, i am sure they will eventually get mileage from it somewhere.
But they are doing the diecast too.