I think just over a third are still on Zoom here, roughly 22 on Zoom to 42 in the KH.
I thought the GB wouldn’t dare take away Zoom, but who knows, maybe they are crazy and controlling enough to do it, regardless it it loses them 10 to 20% of members.
On the other hand, there were always people ‘on the phone link’, even before the pandemic, so presumably there will still be some provision for people at home. Most people can make some sort of case why they can’t get in to the KH. So presumably there will always be Zoom, or something like it. Some elders might be strict or obnoxious about it, but in my experience anyone who said they needed the ‘phone link’ got it.
I know a congregation nearby that as recently as a couple of months ago reverted to Zoom meetings for a couple of weeks because too many people caught covid all at once. This decision was apparently taken by the local elders. I don’t know if they were given permission or took the decision unilaterally. But as far as I know it’s a bit of an outlier.
They may resort to Zoom in future in cases of heavy snowfall or similar adverse weather, I would suspect.
In short, who knows what they’ll do with Zoom in future, it’s unpredictable.