No. Most people won't have heard of these rumours.
Wii sales are low because of market saturation. It happens to all popular products. A price cut wouldn't do much to change that. New colours and a popular game (like NSMBWii among the Nintendo fans or Wii Fit + among the "casual" gamers) would do far more. But this holiday will most probably be below last year's, price cut or not. In my opinion.







