Today Nintendo Enthusiast caught wind of Amazon.com offering the Deathstroke DLC as a pre-order bonus on Wii U. This stands contrary to what we were told by Shopto.net, so we decided to reach out to Amazon for confirmation about this information.
A customer service representative stated;
I can verify that the Wii U has a pre-order bonus. [Further stating that I was correct in referencing the Deathstroke DLC]
You can pre-order Batman Arkham Origins for Wii U on Amazon.com HERE
Amazon have not updated Amazon.co.uk to include the DLC for UK buyers yet, but if this is an indication to the SKU for Wii U we can expect it to be available from local retailers where ever you are soon enough.
Meanwhile we are still trying to get final confirmation from Warner Brothers.