Probably the best objective measures of JW growth are census results and both Canada and Australia show clear declines. If we had comparable data from other countries we would have a clearer picture of what is really happening.
Many countries in Europe are declining by Watchtower's own measurement too. Especially in Germany and Eastern Europe congregation numbers and publishers are down.
Even growth in Africa has not prevented worldwide figures dropping. JWs have not experienced such bad figures outside of the prophetic failures in 1914, 1925 and 1975. And never has such a drop lasted so long or looked so likely to continue and get worse.
The collapse deniers can continue for a while with their denials. But time and facts are not on their side.