Nikon just released the latest teaser video for their upcoming mirrorless announcement, and this one focuses on the other half of the equation: the lenses. And it looks like you'll have something to be excited about.
The video is typical of the teasers, containing lots of hints and silhouettes and a voiceover that says: "As we embark on our next 100 years, these lenses are a new symbol of Nikon's quest for optical perfection." However, we do seem to get a bit more of a hint this time: the Noct-NIKKOR 58mm f/1.2 is featured prominently. Also notice that the featured lenses in the group shot are all wide-aperture 50mm or near-50mm lenses. Nikon recently trademarked the term "Noct," and it's worth noting that in the past, it was applied only to the aforementioned lens and designated it as being designed for excellent sharpness at its very wide maximum aperture. Taking all this information and combining it with recent rumors of a 58mm f/0.95, and I think it seems that Nikon plans on releasing a high quality prime with a very wide aperture and a focal length of 50mm or 58mm (though this seems to lend credence to the rumor of the latter). The next few weeks should be quite exciting!