Temporarily the two incarnations of Nikon's fith generation cameras are in my house. On the left D500+MB-D17, on the right D5.
I very much hope for the third incarnation. Sources say that the D850 / D900 will not happen this year. Pity.
A slow high res camera with superb implementation of silent shutter to use in musical events and theatrical performance and in churches would be more than welcome.
The D600 is a proxy for such a camera since 2013 ... proxies tend to last long ... wonderful IQ, amazing, but compared to the fifth gen cameras simply no WB and no AF.
With the D500 I now got a second proxy that has its own virtues as a sports and wildlife cam.