Two images have leaked of an upcoming lens that appears to be from filter-maker NiSi. One image shows the lens mounted to what looks like the Sony A7R III, while the other has it sitting on a Fujifilm body of some kind, possibly the Fuji X-E3.
Not much is shown about the new lens, except that it’s made by NiSi, has a maximum aperture of f/4, with a distance scale behind the focusing ring. It also appears to be a fixed focal length lens, as there are only two dials for the aperture & focus. No zoom.