In an interview with heise.de Dirk Jasper from Nikon said that they are very happy with the Nikon 1 J5 camera... in Europe Nikon claims to have between 2%-10% market share (depending on the country). There was also a confirmation that Nikon is also "looking" at other sensor formats for mirrorless cameras (Google translation):
When we talk 1" sensors: what's up for the future with mirrorless cameras?
Of course Nikon steps further there. We are very satisfied with the J5. In Europe, it holds a market share between 2 and 10 percent, depending on the country, in Japan we even achieve more than 10%. We also have an eye on different sensor sizes. But we do not want something to our customers which might be only a compromise. With our DSLR we drive Formula1, so with a new mirrorless we do not want to sit in a go-kart.
I am still not sure if Nikon 1 products were even on display at the Nikon booth at Photokina.
Update: Photographyblog just published their interview with Nikon and it seems that the Nikon 1 system is still alive:
How is the Nikon 1 system doing in Europe? Is it still being promoted?
The Nikon 1 system will definitely still be be around in the future - there are no plans to withdraw it from the market, as you can tell by our stand which has a large Nikon 1 area. The Nikon 1 J5 camera is selling really well, allowing us to achieve up to 10% share with just one camera model in some European countries. Again, the smaller sensor size gives the Nikon 1 system some key advantages when compared to larger sensor cameras.
Check out Nikon’s remote-controlled robot cameras at PopPhoto (Nikon recently acquired Mark Roberts Motion Control).
Nikon did not have any DL camera prototypes on display at Photokina.
Pictures credit: Photokina