Kipon announced a new ELEGANT series of full-frame mirrorless lenses designed for Nikon Z and Canon R mirrorless cameras:
Shipping is expected to start in late December 2018. Kipon products are sold at Adorama, Amazon and eBay.
Kipon already has the same set of lenses under their Handevision Iberit series (for Leica M-mount).
More third party lenses for Nikon Z-mount can be found here.