Agreed - my guess is about 100-200 years. Turkey is an excellent start point, but there are also other areas we should be looking at in this situation: Dubai and Brunei come to mind.
Maybe, Marc, but Dubai still is tied to Arabic in a way that is self-limiting. Brunei I just don't have a feel for. I will say this, however, that if he Turks go foward with this, they are very likely to much faster than we might expect. I also believe that a "reformed" hadith would be well recieved in some areas of Africa.

Best

Tom