This may be a familiar theme by now, but respected scholar Bernard Lewis lays it out again:
The Muslims "seem to be about to take over Europe," Lewis said at a special briefing with the editorial staff of The Jerusalem Post. Asked what this meant for the continent's Jews, he responded, "The outlook for the Jewish communities of Europe is dim." Soon, he warned, the only pertinent question regarding Europe's future would be, "Will it be an Islamized Europe or Europeanized Islam?" (more)
Given the reluctance of most Muslims to condemn radical Islam, my guess is that if current trends continue, the future will see an Islamized Europe.