Totally agree. There are likely going to be rebates until they sell off the stock, but unless the GTX560 is really powerfull on a relatively low budget, prices will stay the same.
I believe that it might change the prices on hd6950, and less likely to change the price on hd6970, hd6870 (and as a consequence gtx470).
Still, isn't it comming out 25th? Wait and see!