The faceplate is going to be available to people who pre-order the console bundle. They've mentioned that it might be available separate from the bundle, but in 'very limited quantities' across all the non-Japanese regions.

Even if I don't buy the game, I really do want that faceplate. I'd like that harddrive too, but the faceplate is pretty sweet.

An official link mentions the faceplate, which uses the old image of Lightning at the bottom.

A separate link shows off the faceplate itself, as well as the FF13 branded harddrive.