https://www.techradar.com/news/its-official-nikon-announces-development-of-a-new-mirrorless-camera

It's official. After the release of the teaser video a couple of days ago and rumors that we'll see a new mirrorless camera from Nikon on August 23, Nikon has officially confirmed the development of a full-frame, Nikon FX-format, mirrorless camera. What's more, the new camera will feature a new lens mount, which will also see a new line of Nikkor lenses.

The shift to a new lens mount is no surprise, as this provides Nikon's engineers with a blank canvas to work with. However, Nikon says that along with the new camera, a new mount adapter is being developed to enable existing Nikon F-mount lenses to work on the new camera.