To read a good article on Islam-Mecca-The Whore of Babylon, go to yourarmstoisrael.org and select "sermon notes" and pull up "The Final End Time Beast". Print and save.
According to most fundamentalist interpretations of bible prophecy, after the battle of Armageddon there won't be anyone left alive on planet Earth except Jews, their Messiah Yeshua (Jesus), and those Tribulation era Christians who will escape martyrdom at the hands of the Antichrist. Reformed Theology Protestant denominations and Catholics have a much different view of end times prophecies than the fundamentalists, ranging from the idea that all end times prophesy has been fulfilled all the way to the idea that end times prophecy is all about spiritual matters and is not intended to be taken literally.
Frankly I don't know who is right, or even if anyone is right, about bible prophecy or the the aftermath of Armageddon. But I do know that the if the world is cleansed of Satan and his Islamic followers at Armageddon, and then does come under Jesus Christ's 1000 year Messianic reign as the fundamentalists believe it will, it will be a far, far better place to live then than it is today.