In article ,
RichA wrote:

Nikon
D300s---------------------D500
Long time-frame, major improvements. A logical upgrade.

Nikon
D800/D800E------D810---------D850 (presumed number)
Minor upgrades, marginal added-value proposition.

Not 850, just 820:

https://nikonrumors.com/2017/05/04/n...n-d820-camera-
specifications.aspx/

Nikon
D7000---------D7100------D7200---D7500
Minor upgrades, marginal added-value proposition.

Your camera RichA:

http://tinyurl.com/mjyz8qy
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teleportation kills