The Nikon Z5 is rumored to be announced on July 21 (±1 day based on time zone).
The Nikon Z5 will not be the only new product announced on that date. I am still working on the complete list of upcoming Nikon products and will post it online soon. Stay tuned.
If you have any additional details or pictures of the upcoming Nikon Z5 camera, you can contact me anonymously here.