Nikon introduced, last week, a new full-frame camera, called the Df. It doesn't really break any new ground, so far as I can tell, technologically, but is designed as a throw-back to earlier film models. Personally, I don't get the appeal. Yes, I did my first photography with film cameras (like) the ones it's based on, but it still seems like a waste of time. I was happy to move to more modern models.
It seems like some people like it, and it doesn't seem bad, but does seem significantly inferior to a D800 at only a couple hundred dollars less.
I guess I'm just not a nostalgic person; but I'd rather see Nikon breaking new ground.