according to a local shop who reached out to BC to get an updated tech sheet for the 22/23 collection skis (as the catalogue supposedly is shait as they are trying too hard to be hip), the Nocta remains identical next sesason outside of the change in graphic. So either a typo or a marketing department decision of re-packaging. Who knows.
And do not get me wrong, I do not like turny skis. A reworked Nocta with a slightly more active sidecut on harder surfaces would possibly be a good thing, as it would not be introduced if it compromised its performance at speed and the shape should be plenty loose in soft snow regardless of what its sidecut number is. BC seem to have made that work with the current Anima, still solid at mach schnell, but more nimble at slower speeds in spite of being stiffer and having wider shovels/tails (though, that is all other people saying so - I have not tried either generation).