Original Xbox BC games leaked?

Apparently, (discovered by twitter user @GamerTagstic) if you visit Gamestop, by going to Trade in> Games> Search: BC this “leaked” list of original Xbox games will appear, shown as backward compatible (BC).
Microsoft announced original Xbox backward compatibility a couple of months ago on the E3 2017 conference. Some games already confirmed by Microsoft are Crimson Skies: High Road to Revenge and Fuzion Frenzy, but fans won’t be able to play them on Xbox One / X until later this year.