While the marketing published specs might look impressive (same as the way that Olympus made the EM1.2 look impressive), if you delve deeper into the specs, what most people would use, significantly decreases the "hero" specs from the press release. It is no better than a Canikon flagship.
On top of that, without having an extensive test of the AF system, we don't know if they will still be suffering from C-AF performance behind Canikon.
I too, have a feeling that when Nikon is ready, we are going to get a killer FX mirrorless camera that will be backward compatible with the F-mount. I feel they have learned a lot from the Nikon 1 series cameras and will translate some of the mirrorless stuff from that to a larger sensor camera....if they have not already done so. Something nags my brain and I think that they already have something prototyped out. The DSLR is still not dead for a very large demographic of users.