It looks like Nikon might be going back on its word when it comes to future feature enhancements. Promised deep down in the Nikon Z8 (buy here) announcement press release is Auto Capture. This is the same Auto Capture that was recently released for the Nikon Z9 (buy here). The new feature lets your camera shoot completely unattended on a pre-fixed spot, waiting for a subject to appear.
It looks like this feature is being rolled back now, though. Nikon had initially mentioned that the feature was also coming in the Z8 during the Z9 v4.0 firmware launch video. Now, all reference to the Nikon Z8 has been removed from the video. The paragraph that mentions Auto Capture has also been removed from the press release.