The Chinese company Yongnuo is rumored to announce a new YN 35mm f/2 Z DF DSM mirrorless autofocus lens for Nikon Z-mount next week (on October 31):
Here are the leaked specifications:
Update: the lens is released only in China for now. The price is around $250.
In the US, Yongnuo lenses are sold at Adorama, B&H, and Amazon.
Previous coverage of Yongnuo lenses can be found here.
More third-party lenses for Nikon Z-mount can be found here.
Via PhotoRumors