If you go to Nikon USA website, you will see a total of 9 mirrorless Z cameras:
Nikon.com also shows 9 Z cameras:
Nikon Germany also displays 9 mirrorless cameras, but their counter tells us that they have a total of 10 cameras on display – it seems that the 10th camera (Nikon Z8?) is still hidden:
Just like the NIKKOR Z DX 12-28mm f/3.5-5.6 PZ VR lens, there are some weird things going on at the European Nikon websites. I will keep looking for clues – please do the same and share your findings in the comment section or contact me. Thanks!