The point is not whether their numbers reverse or not. Although they have masked underlying decline with growth from the less informed.
The point is how relevant their message is, and it is obvious they are thrashing about like a drowning man gasping for the oxygen of relevance. Websites, TV channels, apps, hanging around with carts near public transport hubs....really?
Organised religion is dying in the West - it has been superceded by a better paradigm for those who choose to educate themselves. For as long as government entertains their charitable pretense and as long as the populace value freedom of religion, then they will continue to limp along. In the meantime they are caught between being an irrelevant cult niche and an irrelevant mainstream niche.