I don't see it happening either (nor have I heard anything to that effect), for many of the aformentioned reasons.
And like Blondie, I vividly recall from the days of my youth the 15 minute intermission between the Public Talk and WT Study, 5 (or more) day Conventions, three-day circuit assemblies (Friday night and then Sat and Sun), complete with full meals cooked on site, and other features that, to a JW today, would seem like a tremendous burden - which is exactly what it was.