What you're looking at here may be the finalized box art for the Japanese version of Final Fantasy XIII .
However, Square-Enix did confirm that they haven't officially settled upon a design just yet (although they didn't deny the validity of this one), and if accurate, this may only be available with the game that comes with the Lightning-themed PlayStation 3. We can't really be sure. But what's interesting about this, as RPGSite points out, is that if the Japanese do end up with this box art, it'll be the first time a Final Fantasy game launched over there with something besides the game's logo over a white background. Maybe they just want to add a dash of flair this time around; who knows? We do know that box art has proven to be more important than you might think in regards to potential sales, as consumers often claim the box draws them to some games on store shelves. On the other hand, if you know you're going to buy FFXIII, you probably don't care about the box; it's gonna be in your collection no matter what. I suppose I'm in that boat but as a collector, I also want the best-looking box possible.
Anyway, we'll let you know when Square-Enix decides to show us the finalized box art and remember, we'll likely get something different here in North America. Maybe they'll show us both at the same time, if we're lucky.
Related Game(s): Final Fantasy XIII