Apparently AdoredTV got sent some details about the new Nvidia cards:
https://www.youtube.com/watch?v=ms7HQ7rckpA
Edit!!
He thinks it might be 7NM if the leak is true,or there is a massive IPC increase.
However,the 106 series GPU which would have been the 60 series card is now a 70 series card.
For example:
GP106 was the GTX1060
GM206 was the GTX960
GK106 was the GTX660