I agree with much of your post, but think you under-appreciate the contrary developments in Russia. I've been interacting with Russians and Russian speaking people since my undergraduate years. I sang in a Russian singing group in Orthodox churches, studied the Russian language, and have kept some form of cultural contact ever since. The re-emergence of public Christian worship in Russia is pretty remarkable.
As Tom mentions below, Christianity is sky rocketing in parts of China--and Chinese who have immigrated here probably are more reliable attenders of Christian worship services than native Californians. I'm especially aware of this, since many of them live just down the street here in California. This phenomenon is something I'm not ready to even speculate about. My best guess is that Chinese are simultaneously going in opposite directions at the same time: some more secular; some very Christian.
I think Protestant Christians have exhausted themselves in disputes over almost anything, but Christians in the United States still have not seen a path to reconciliation. I don't think that there has been a serious effort at forging a consensus since Albert Schweitzer. The best examples of post atheistic thought over here have come from places like French Canada. Yann Martel, who wrote The Life of Pi, was raised by atheist parents: