There will be an upgrade kit for the Ender 3 v3 and all K1 models.
The product is already visible in the Creality Singapore shop and is expected to be available from 20 January:
https://crealitysg.com/products...469 Sungapur dollars is currently approx. 313 CHF.
We'll have to wait until it's available here (and hopefully the price will drop a little).
The K2 Plus (with or without CFS) is also extremely expensive at the moment.