Semi-committal reminders that it's "any day now" simply don't muster up real, genuine long-term enthusiasm, though.
Some JWs are more hepped up due to COVID-19 - "somehow" it is going to "directly lead" into the great tribulation.
How, exactly, is never explained, and of course its not an official JW doctrine.
I suspect / fear that when a COVID vaccine is developed and implemented, and the world gradually returns to "normal" (or a near facsimile of it), a large number of JWs will be very depressed and/or lose their zeal and fade away. If the world recovers from a "4 horsemen of the apocalypse" event, how can even the most non-thinking JW put any stock in WT promises of "very soon now"?
I don't think that is going to happen in the near future, but it is going to happen.
And, as others have posted, I don't expect the WT org. to "collapse", but rather slowly fizzle away. The recovery from the pandemic, due to reasons expressed above, may be a catalyst to accelerate the process.