Alan Wolfe, one of America's more interesting scholars, has an article in The Atlantic about religions and how they're not disappearing.
He starts by quoting form a recent study in The Economist, but his own article is more interesting. He then brings a very interesting chart which shows that more affluent societies are less religious than poor ones. Israel is slightly on the edge, a bit untypical, while the United States is off the map: very affluent, quite religious, and different from everybody else. (I would argue that the similarities between Israel and the US - their levels of religiosity are very similar - are one of the many fundamental, structural affinities that make the relationship between them so unusually strong).
Eventually he presents the thesis that religions in secular societies adapt to the basic tenets of secularism, and thus need not threaten anyone.
Mostly convincing except where he tells that this universal trend is operative even in the Muslim world. It would be nice if he was right, and there actually are indications that it could be that way, but I don't see much justification to be sanguine, not just yet.