According to foreign media sources, Nikon will also bring Nikon's flagship mirrorless Z 9 in the near future, including: FTZ II adapter ring, Z 100-400mm lens, F4 constant full-frame standard zoom lens (guess Z 24-105mm) and Z 400mm F2.8, although some products or only announced development status. The exact release date has not yet been revealed.
via nikonrumors