The rumored Jack Skellington figure and case set is indeed real. It will be at GameStop on 10/5.
Nothing else is known about it as GameStop did not provide any more details than what you see in the screenshot of their website above.
It should be available in-store starting this Saturday, though who knows how limited stock may be. Hopefully when stores get their stock in this week, we will be able to see or hear what the scenery is made of.
Remember that GameStop is having their Disney Infinity Day with various deals and a free poster!
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