If Zen core is competitive and a hexacore can be offered at that price range, then it would be a major improvement over what is going on in recent history. FX 6100 was selling initially for what, 160-180 dollars? And it went south from that, 6300 was much cheaper. This might actually be a good scenario for AMD.You guys are talking about Zen competing with Intel's HEDT line, so I assume you're talking about <Architecture>-E series processors.
Yet, we have commentators here saying that Zen is "trying to find a space between Intel's mainstream line and HEDT". Okay, so which is it?
The only way to do that from a pricing perspective is to aim for the $299-$349 area with appropriate performance. Skylake i7-6700 is $325 - 350 right now. The K version hovers around $399-$419. Those numbers will come back down to reality once yields improve and catch up with demand. I expect to see i7-6700K at $329.99 in around 4-6 months. If it doesn't hit that point, then no one has any reason to ever purchase it, because you can just get a Broadwell-E for $390 and get 2 extra cores and probably similar or better performance.
So if Zen is aiming between these two products, the only price range there is $300 to $350. This isn't a compelling place to be in my mind... but maybe I'm wrong.