I doubt it. Why would they? When they can sell them for the RRP thus keeping their profits to a max.
The Wii has been out for 13 months and there are still not enough to go round I think it could go another 12/15 months at least before a price cut is needed.
Don't be tight get one now (if you can find one) and start enjoying the world of Wii.
When Wilkinsonsplus(!) (http://www.wilkinsonplus.com/invt/0258657) have them in stock they tend to sell them for £169.99...also some of us were lucky in September when they forgot to exempt it from their 15% student discount code