To confirm our previous information, other sources indicate that the new Mac Pro would come around March, 16. Apparently only the high-end Intel Xeon Core i7-980X will initially be available. Clocked at 3.33 GHz, its TurboBoost mode will allow it to reach 3.6 GH. The Core i7-970X will be clocked at 3.2 GHz, with a 3.46 GHz TurboBoost.
If Intel only releases initially a single hexacore Xeon, then Apple will not have much choice and most likely only the high-end model of Mac Pro will evolve. So, the offer should then evolve to faster quad core CPU and lower price for entry level models.
We also suspect that Apple will take the opportunity of this "refreshment of the offer" to release a new design for the Mac Pro. We would love to have at least one 2.5" enclosure for installing a SSD where the system you be installed as well as applications, this is already possible on the Xserve.