According to NR, more leaked specs of upcoming NIKKOR Z 800mm f/6.3 VR PF S lens now available online. The price for this lens will be around $6,000, and the weight for this lens will be much lighter than other 800mm lenses: Weight around 2,300g. The official announcement is around April 6th next week. And release date is in May 2022.
Amazon US now currently has Nikon Z9 body in stock soon, shipping within 6 days. Order ASAP before sold out again.