I don't know which region you live in, but certain websites are doing a day 1 edition. Those websites are working in conjunction with Namco Bandai, which it tells you here:
http://www.talesofgame.com/uk.html#order-content
If you pre-order before the game is out you get some stuff with the game.
Namco Bandai is doing their own special edition which comes with more stuff, available only from their main site.
I've pre-ordered with Amazon UK. The day 1 edition, but they haven't updated their site yet.