My guess would be that Desto and Cobra Commander would be straight up repaints.
The others, I am guessing are repaints with new headscuplts.
Hasbro is getting great millage out of the unique repaints (Torch/Gung-ho), but I am getting Tired of the Cobra Commander mold - that left hand fist can only be displayed so many ways.
I am guessing that they will use the Duke/Flint mold for Falcon. If they do a Duke/Flint repaint for Falcon I hope we get new hand sculpts as those hands are crappy for holding a weapon.