One would expect the vast majority of 'non-Western' immigrants are Muslim and the percentage of Muslims in Denmark are certain to increase more rapidly than any other religion or non-religion. Consequently, I expect the percentage of Muslims in Denmark to exceed 15% by 2060.
Is that a bad thing? According to Dr Peter Hammond what often happens in countries where Islam is rising, looks like this:
At this point (5-10%), they will work to get the ruling government to allow them to rule themselves (within their ghettos) under Sharia, the Islamic Law. The ultimate goal of Islamists is to establish Sharia law over the entire world.
When Muslims approach 10% of the population, they tend to increase lawlessness as a means of complaint about their conditions. In Paris , we are already seeing car-burnings. Any non-Muslim action offends Islam, and results in uprisings and threats, such as in Amsterdam , with opposition to Mohammed cartoons and films about Islam. Such tensions are seen daily, particularly in Muslim sections in France and Sweden.
After reaching 20%, nations can expect hair-trigger rioting, jihad militia formations, sporadic killings, and the burnings of Christian churches and Jewish synagogues.