The reality - here in the real world - is that nobody cares about the strange people who are JWs, nor their strange beliefs.
THAT, I believe, is what will finish them gradually. Nobody even cares enough to argue with them. Those people with good manners will smile, accept the the publications and put them straight in the bin. The less well-mannered will laugh in their faces. And the (as I see it) reducing number of dubs will circle their wagons, consider it to be the 'last days', congratulate themselves and study their mags for all sorts of confirmation that they (and only they) are right.
All very sad, really, for the poor saps who have given their life to this crazy and controlling cult.