In my area of the Mid Atlantic east coast of the US, attendance is down noticeably but not too drastically. This is how its been sincce resumption of in person meetings so not a direct result of the AM new light.
My friend who is near "Jerusalem" said that meeting attendance is rather inconsistent. Some meetings its decent then some, usually the mid-week meeting, attendance is maybe 60-70% of what it should be. Whats interesting about this is he said he has several bethelites in his congregation and even their attendance in person is spotty. he says they claim they have duties and can't leave the site but my buddy is skeptical and he feels like many times he thinks they just don't feel like making the drive to the KH. Even the chosen ones are geting tired of the routine.