I saw this earlier today on Engadget. Looks like the likely candidate for a MP update.
http://www.engadget.com/2010/03/08/intel-readies-8-core-nehalem-ex-processors-for-a-march-launch/
http://www.engadget.com/2010/03/08/intel-readies-8-core-nehalem-ex-processors-for-a-march-launch/