Coming from the official Facebook page...

Based on several factors we've had to cancel the Wii and Wii-U versions of Young Justice: Legacy.

We regret that this decision will prevent some fans from playing the game and the finding out what happens in the story. There were a number of reasons ranging from quality issues to lack of retailer support, but know that we didn't make this decision lightly. We are a fairly new company, and unfortunately both of these platforms presented challenges we couldn't overcome.

Please accept our sincere apology.

We look forward to delivering the Xbox360, PS3, 3DS, and Steam versions in less than a month.

Thanks to Jon for the heads up!