Rather than turning its next Mac Pro into a big dual-socket affair, Apple is capitalizing on the fact that Ivy Bridge-EP will ship in 12-core configurations, and it’s consolidating the platform into a 9.9-inch-tall cylinder with up to one Xeon E5-2697 V2 CPU. Regardless of whether you love or hate the “wastebasket” design, the system’s specs are very impressive for the volume of space it occupies. - tomshardware.com
After analyzing the new Xeon’s, Tom’s Hardware’s immediate speculation is the new Mac Pros. I imagine that the new Mac Pro will be offered in several core configs, it also makes sense that Apple would go for a single socket design for space/heat.
I’m willing to bet we see multiple configurations divided mostly by 6, 8, 12 core CPUs.