Today Capture One announced that their brand-specific versions (Fujifilm, Nikon, and Sony) are already officially discontinued (you can still purchase them from B&H Photo). If you already have a perpetual license for version 22 of Capture One for Fujifilm, Nikon or Sony, you’ll get a free upgrade to the full version of Capture One Pro in early April 2022 (source). Unless I am missing something in the fine print, I think it makes sense for new users to purchase Capture One 22 for Fujifilm, Nikon, or Sony today from B&H for $199 and then get a free upgrade to the full $299 version in April (the Capture One 22 flagship product is $100 more expensive than the brand-specific versions).
Via NikonRumors