Still, the passing of time favors, not JW organization but observers with an interest in how long this endtimes organization can last. The word “collapse” is a very loaded and inexact word - more suited to bee colonies and the longevity of historic buildings than adherents of organised religion.
I expect the reality will be somewhere north of collapse but well short of thriving.
Note that with the end of JW Yearbooks and its fastidiously OCD list of country-by-country service statistics ( e.g., including memorial attendances, Bible studies and hours publishing, etc) the scope now exists for confining results to global grand totals without selected country-by-country breakdowns. Those of us who live for detailed lists are left frustrated in assessing the health of JWs in our favourite countries.
No organization that thrives in those areas would confine results to grand totals so something’s up ( or down).
JW organization will not collapse but will likely continue to yield highly variable results country-by-country, and when it does give results for a specific country, they will be without context. You won’t know from the numbers whether they are better or worse than last year for that country. For example, New Zealand’s peak JW publishers for 2017 was about 14,100 which is a bit of a decrease from 2016 BUT over 400 fewer that six years ago. You only know that by checking through old Yearbooks.