Bulk prices are always lower than single unit prices. The only price drops that are planned this time around are for the quadcores. The other cpu's will not see a price drop and the new cpu's are being put to cover he $160-$260 price range and give the buyer more options. Retail prices will be about $50-$100 more in cost (roughly).
I know some are saying its early pricing while it's a not uncommon practice to jack the price up for early release, but don't hold your breath. If I am wrong I'll admit it gladly and I have a small margin of hope that I will be wrong I just don't see it that way.