I was just looking through some of the SDCC pics again and noticed something I missed the first time through...
The Hasbro Slides (both at Toy Fair and SDCC) have Fett looking all ESB-ish:
Which matches the loose figure shown at SDCC...
But after the Panel on Friday, a boxed version showed up that looked like this:
Makes me wonder which Fett is the final production deco one that we'll get?