According to the outlet, an unnamed "major retailer" shared with them the following listing:
Introducing the Wii Mini! Coming Dec 7 2012! WII MINI CONSOLE Compact Nintendo Wii Console Comes with Sensor Bar, Nunchuk and Wii Remote Plus with Jacket.
Nintendo has yet to confirm the validity of this report, so we'll have to treat is as rumor for the time being. In the meantime, let us know in the comments below whether or not a smaller version of Nintendo's motion-heavy console has you interested.