Foto Koch seems to be the only website that posted some additional information on the new Tamron 35-150mm f/2-2.8 Di III VXD lens for Nikon Z-mount – check it out here. Here is a size comparison with the Nikkor 70-200mm f/2.8 S lens:
Bokeh sample from the new Tamron lens:
In Germany there are also several lens kits with the new Tamron lens:
Pre-order links: