
Not really a confirmation, but this is what Tamron had to say in a recent interview on their plans to develop mirrorless lenses for Nikon Z mount (pretty much the same response they gave a month ago):

The new Tamron 17-35mm f/2.8-4 Di OSD lens for Nikon F-mount (Model A037) will be officially announced on Modany, August 6. Shipping is scheduled to start on September 4th for the Nikon F-mount version. The Japanese price is¥78,300 yen (including tax), around $700 USD in the US. Update: I just received information about the price […]

Tamron will soon announce a new 17-35mm f/2.8-4 Di OSD lens for Nikon F-mount (Model A037) Lens construction: 15 elements in 10 groups Shortest shooting distance: 0.28 m Maximum magnification: 1: 4.9 Filter diameter: 77 mm Size: φ83.6 mm × 92.5 mm (for Canon) Weight: 460 g Tamron already has a 15-30mm f/2.8 lens for Nikon […]