The L.A. Times has a piece on Mickey Rourke potentially appearing in Iron Man 2, potentially as Crimson Dynamo. One would suspect not in the Anton Vanko incarnation (and certainly not the teen-age Gennady Gavrilov incarnation). I don't recall a variation that was a basic arms dealer, so this, if true, would be another incarnation.
(The same piece has a section on George Lucas and a "Force trainer" shown at the Consumer Electronics Show. Wonders never cease...)