An updated Nikon Z-Series lens roadmap appeared online this morning, purporting to show all of the NIKKOR Z lenses that Nikon has in store for 2020 and 2021. From an 85mm f/1.2 to a 100-300mm f/4, it seems Nikon has a lot of glass in the pipeline for its full-frame mirrorless system. First: the grain of salt. This roadmap certainly seems plausible given Nikon’s current lineup and the official roadmap available on the the brand’s website, but it was sent…