Actually I've been noticing the opposite trend, the reduction of Islamic fervor (whatever the hell that is), as more muslim atrocities occur (when was the last GOOD news about Islam you ever heard?), more countries, cultures, and religions back away from Islam. Even muslims are starting to voice opposition to the tack islam has taken (about 5 years too late).
I think this whole story is 5 years too late, and the world's hatred and distrust of Islam is a seed sown wide and growing tall. The Islamic dominoes are falling, country after country they are being neutered and brought to heel, such that even Saudi Arabia is reigning in the Wahabists.
This so called religion can only be spread by the suppression of education, as the map posted by Lorianne shows. There are no highly educated muslim majority countries.
Islam is at its peak, and is starting its self destructive downward spiral. We need not worry about the Caliphate.
We might need to continue the worry a little more. Many people I am talking to in the U.S. and the UK are confirming that citizens are converting to Islam. They are not happy with "organized religion", and are "touched" by the "peaceful"? Tolerant? side of Islam. When, they have the converts fully under control then they are shown the Jihad.....They find the potential conflicts of a country and turn one against the other. Poor against the rich...the black against the white or whatever works.
From a friend today to whom is also on the same track....
He wrote:
Hey Tom,
I couldn't believe it. I drove down the street and at the stop sign a shady looking Arab appeared in front of my headlights. He likely was walking back from the convenience store in the dark. The ghastly image of this bearded Arab instantly took me back to Sarajevo where I saw exactly the same look on the faces of fundamentalists. It's a guttural thing. Once you experience it, you never forget it. They are infiltrating us all over the place. Keep in mind, I'm the lower FL Keys, on a Island. Another Muslim, who came from Bangladesh and made a fortune selling magic Chinese crayons to kids bought a house on my street that he now rents on short term basis ($2500 a week). Whether it be in Europe or here, they know our laws and loopholes better than we do and DO take advantage of them. You're right! It's only a matter of time.