I hope that we get the extra head and arms so I don't have to buy two.
If Hasbro does cheap out and release Luke as TWO variants, it'd be just another example of why everyone is so mad at them. They constantly cheap out lately: the plastic, the accessories, the variants.
Here's the original quote from back in February
"Question: What's with Luke and that pose in the Dagobah wave?
Answer: The Luke figure in the Dagobah wave comes with an extra set of arms and head, so he does NOT always have to be posed doing a headstand. Also, the Yoda figure is meant to interact with the Luke figure (similar to the Wampa and Luke Hoth). The backpack fits on Luke and Yoda separates at the waist so that he looks correct when sitting in the backpack. "EDIT:
'Scum now has pictures up and they are reporting that Backpack Luke comes first, with Handstand Luke in a future assortment. Still no word on if you get both heads/hands with each version... but it's not looking so good.