
Several Japanese news outlets published an article based on an interview with Nikon executives. Here are the key points from a Google translation (if you have a better translation, please post it in the comments section):
Fotosidan published an interesting interview with Zurab Kiknadze, product manager for Nikkor lenses in Europe where he talks about the possibilities of a Nikkor 50mm f/1.0, future PF lenses and the limitations of the F-mount. I cannot embed the video, you have to visit this page in order to watch it.