I have no connections with Bethel, but my educated guess assumes that the August edition of the Watchtower has been delayed because the Governing Body haven't decided on how to manage these areas:
How to shepherd and appoint brothers based on the removal of the hour requirements, getting to know the brothers instead (does this mean prioritising appointing men who have auxiliary pioneered during the CO visit and campaigns or men who are regular pioneers?)
How to handle disfellowshippings and reinstatements in light of the new direction from the GB update, as well as further emphasis about the personal invitation and simple greeting JWs can give DFd individuals at the Hall.
Admittedly, the Governing Body have made too many changes about various things in such a short space of time. This has no doubt increased their workload, which they continue to ignore as a potential burnout for many of the high ups in the Organization.
If the Governing Body make more changes this year, especially if a significant one occurs in the June 2024 GB update, I'll feel so sad for all the zealous PIMIs, trying to keep up with the "chariot" when in fact they're running in a hamster wheel.
Too many changes in one year is how I view this year for JWs, if the GB keep up their act and it carries on a few more years, we will see many more burn out and leave. I somehow wonder if they'll go so far as to change everything to be closer to a mainstream religion like the LDS church, 2 cults who enjoy copying eachother.