According to WiiU Daily, these are the latest leaked Wii U concept art leaked by an online survey company. The survey was performed by Global Test Market, which does a number of surveys for various game publishers. The company showed users the Wii U concept art and asked whether they would purchase the system if it retailed for $300.
We pretty much know what kind of gaming can be performed with the Wii U and although the concept art doesn’t reveal anything really new, the company estimate the Wii U will likely retail at around $300. Nintendo have yet to confirm a final price or launch title line-up, but I’m sure all will be revealed in E3 soon.