Well Intel just released their new processor yesterday.
That processor is the Ivy Bridge and I believe it will be in desktops first. But i expect some of the more powerfull Sandy Bridge processors will be seeing decreased prices. Almost all the companies demostrated new cheaper Ultrabooks at the CES held a couple of months ago. These Ultrabooks are going to be priced cheaper then the first generation of Ultrabooks and will have the new processor. They are also releasing Ultrabooks with 15" screens. I've heard it's not the best time to buy because we are between technologies. I think you will see lots of new models coming out in the next 3 months and the older models will be reduced.
3 generations of the iX processors
1st generation the processor number is < 1000 (example 620,640, 640UM)
2nd generation the processor number is between 2617 and 2860 (in the 2000's) - Sandy Bridge
3rd generation " " 3610 and 3820 (in the 3000's) - Ivy Bridge