For the persons interested, here's a short history of the lens:
Since 2014 Tamron and then Sigma offered interesting super tele with impressive reach (150-600mm f/4.5-6.3), but Canon and Nikon remained quiet with their semi-pro 100-400mm f/4.5-5.6 L IS USM (II) and the 80-400mm AF-S VR respectively.
In august 2015, Nikon launched the 200-500mm f/5.6 AF-S VR, which has everything to compete (and certainly beat) its competitors but not enough to cannibalise Nikon’s Pro range lenses because of the lack of tropicalization which is required to shoot in extreme weather conditions.
In other words Nikon has launched a versatile optical weapon with an electronic comparable to pro lenses (AF-S and VR) but without the mechanical finish that characterise them (and that justify their high price). This is a great opportunity for wildlife and even sport photographer looking for a super tele with excellent sharpness and good focus speed and image stabilisation.
Let’s see the results on field.