I'm in "Wait & See" mode. Somehow I can't see myself wanting to switch from the i7-6700k I just upgraded to from an FX-8350.
Although, thinking about it logically... Given how much AMD's marketshare has fallen, and how much of a hole they've dug for themselves, Zen I would imagine is going have to do more than just match Intel's offerings, it's going to have to beat them, and probably decisively too. Otherwise, it probably won't improve their marketshare much, they really need to give people good reason to ditch Intel.
Also, the 2016 release could very well be 2017 too based on some prior comments from those at AMD. We shall see though.