It looks like Nikon is making some major decisions during their restructuring. After more than 70 years, Nikon will end camera manufacturing in Japan and will move all production to Thailand by the end of 2021.
From Asahi (Google Translated)
At last, Nikon will end the domestic production of camera bodies that has continued for more than 70 years. Until now, body manufacturing has been carried out at “Sendai Nikon” in Miyagi Prefecture and “Nikon Thailand (NTC)” in Thailand, but in order to reduce costs, it will be concentrated at the Thai factory.
Production of the mirrorless cameras Z 7 and Z 6 was completed at the end of September, and preparations for the transfer of production to Thailand have begun in October. Production of the D6 digital SLR will also be transferred to Thailand by the end of 2021. (translated)
I do wonder how this will affect the used market, will a Japan-made Nikon D6 retain value better than a Thailand made Nikon D6? Us camera nerds can be weird about those sorts of things.