Tekken 6 will have several different editions available when its released on October 27th.

The Limited Edition will include the game, a limited edition wirless fight stick created by Hori and a collectible Art book.

Now the video game retailer Gamestop has their own exclusive edition.  The ever so cleverly named Gamestop Exclusive Special Edition includes
  

• Limited Edition Tekken 6 Samurai Pack Downloadable Content featuring: An official Cardboard Tube Samurai outfit designed by Penny Arcade exclusively for Yoshimitsu. And limited edition Samurai Battle Banners with which you can customize for each of the 40 fighters.
• A Limited Edition Tekken Calendar featuring the hottest characters of Tekken in incredible graphic detail.