Nikon has new registrations for four different, not-yet-announced cameras: N1845, N1847, N1849 and N1850:
ニコンの4機種の未発表カメラ「N1845」「N1847」「N1849」「N1850」が海外の認証機関に登録されました。#認証情報 pic.twitter.com/JGh135EP0l
— 軒下デジカメ情報局 (@nokishita_c) January 15, 2019
From previous registrations, Nikon already had three additional registered but not-yet-announced cameras – N1838, N1811 and N1721:
If I am not mistaken, this is a total of seven new/upcoming Nikon cameras!