I think Nikon has dragged its feet for far too long. Even with the built-in selling power of Nikon branding, Sony and Fuji are two huge obstacles in Nikon's path to significant mirror-less market share now. Nikon waited and Sony stepped up to fill the void in a big, BIG way. Nikon could, I suppose, have another Kraken of a camera in the wings ready to be unleashed, and I really hope they do... But I'm not holding my breath.