hmm, could be good but I play Batman games just for the single story.

Well looks like it is not the only thing missing.

Another WiiU game that doesn't get a special edition release with extras.

The Batman: Arkham Origins Collector's Edition Includes:

• Exclusive Arkham Origins premium statue featuring Batman & The Joker
  
  • Beautifully rendered and highly detailed statue measuring approx 
  • Height: 30cm
  • Dept: 13.5cm
  • Width: 13cm
• 80-page, full-color hardcover artbook 
• Assassin’s Intel Dossier, which includes files on the 8 assassins as well as Black Mask’s contract
• 1st Appearance Batman Skin DLC: Look just like Batman did during his first appearance in Detective Comics #27, released in 1939
• Deathstroke Challenge Pack DLC – Unlock the ability to play as one of the world's deadliest assassins! Usable throughout all the Arkham Origins Challenge maps.  Also includes two bonus challenge maps and two bonus Deathstroke Skins.
• Exclusive 3D Metal Pack