Well there's a few factors to consider. For one the 6000 series Radeon cards are coming out. I don't think you'll see a price drop of the 5000 series cards directly from that for a few months.
But nVidia might get threatened by the 6000 release by AMD, and drop their prices to try to retain some of their market segment. In turn AMD might hack their 5000 series to stay competitive.
It's possible the price will drop but, it's hard to really know for sure.
I believe the 6000 series will release in mid November.