Do you have an idea where we can track this? 14969 was immensely helpful for interpretation and training and I'd like to get my hands on the handbook as soon as it comes out.
The ISO website has a wonderful history&future feature on its pages, but the discontinuation of 14969 doesn't refer to the superseding handbook , and it doesn't show as one of the under development projects of the responsible committee either (so I don't know whether I would see it appear in the published list there out of the blue either).
https://www.iso.org/committee/54892/x/catalogue/p/0/u/1/w/0/d/0