I have to wonder about the long term gains the limited editions will have. They're mechanically identical to the Premium. Look at ads that say "1 of 6 in this color combo" and the price is a few grand higher, but not significant. The M3/M4 CS has lost a lot of value and that was a 1200 car...
No way 2023 will be the last year. If anything the new manual may extend this into a long run...if they sell. They'll eventually drop M3 motors in them for the grand finale. But that's just my opinion, of course.