I don't think there has been any real suggestion that they would put it at DS. It's just the usual DVC/internet negativity that always drives someone to say something like "Well, they said it would be at WDW, so there's nothing stopping them putting it at DS". Sure, but there's nothing stopping them putting it at Best Friends Pet Care or the Reedy Creek Fire Station either.
I'm so glad they'll keep the one at Epcot. Last I heard was that DVC hadn't decided whether or not they'd be keeping the one they have at Epcot. And I really hope you're right about it being at AK.