This also applies to Twilight Princess HD which has been sold out at BB for awhile. The discount will appear once it is in your cart if you're a Prime member.

It's not listed as a special edition, oddly enough. But you do get the special edition extras (Wolf Link + Midna) and hopefully the soundtrack mentioned in the Direct as well.

Just canceled my Gamestop preorder and saved 20 bucks with this one! Hope that helps.