No, because I personally think that Kepler is going to trade blows with Pitcairn. Kepler was not originally intended to be the flagship GPU. The GTX 780 will technically be the flagship GPU when it comes out later this year. The GTX 680, while it may perform comparably, is only named that for marketing purposes. Internally, it was supposed named the GTX 660 Ti, or something, to start out with. I'm not trying to start a fanboy war hear, this is my opinion about what I have read around the internet. You, the world's most "reliable" news source.
If AMD does drop their prices, it won't be by much and it won't be immediately. I still have a feeling that there will be a convenient performance driver for Pitcairn when Kepler comes out.