A CM told me about the changes. The escalators were replaced. The other changes were so insignificant, at least to me, that I don't remember what they were. I think it was basically changes as to what would be on each floor.
PP are correct. When Disney sold the Disney Stores Disney retained the 5th Avenue location. It was part of the theme park division, basically a World of Disney. That was closed after Disney took back Disney Stores. Merchandise from the 5th avenue store was shipped to Orlando instead of a clearance sale. Christmas merchandise and some NYC specific merchandise were the only items deeply discounted at the time the store was closed.
The current store isn't dramatically different then mall stores, excluding some NYC specific merchandise. I don't think that will change.