They mention Thermaltake, Zalman and Cooler Master as enthusiast coolers, no mention of Thermalright, Noctua or Prolimatech thou. I'll be on the lookout to try one of these when they release them.
Intel Plans New Cooler for 'K' CPUs - To launch in June - Softpedia
At present, enthusiasts' mind processes are undoubtedly fully tasked with deciding on what six-core CPU to buy and, in case one already owns such a part, they are occupied with finding newer and less transistor-friendly ways to push their clocks over the top. This, of course, includes getting a hold of a suitable cooling solution, considering that reference coolers are hardly strong enough to keep up with the heat generated by overclocking.
Intel Plans New Cooler for 'K' CPUs - To launch in June - Softpedia