Quite possibly. Didn't really want to speculate much apart from the image I posted, but if I had to guess, I'd say there's about 70% chance that the entire Europe will be Islamized, and I'll admit that I might be putting it too low with that number. The only way that would be avoided would be if the currently anti-immigration countries keep their attitudes and build up capabilities to enforce it (WMDs), neither of which are particularly likely.
Though, realistically, there's a load of stuff to think about in predictions like this, and if, say, some outside power decides to interfere to make sure that there are non-Muslim countries in Europe, than that could also completely change the situation.
Indeed. I briefly touched on this in my reply above, but, while we truly can't predict what happens in the next century with any degree of real accuracy given all the known and unknown unknowns that will change it, it's still fun to look at stuff that we have and do at least very broad predictions which might end up coming true at least in a limited fashion. Nothing too concrete like "X country will be XX% Muslim in the year 21XX," but simply pointing out that all factors seem to point to the Muslim share of both European and world population being set to notably increase.