There is not doubt that in Germany the moderate parties will win again (SPD, CDU/CSU, Green Party, Liberals currently get 75% of the votes; The parties that constitute the current government would get 60%; The party that is currently openly opposed to the EU is at 11%.) [0]. Fortunately, I don't see this changing, even in the far future. The far left and far right can perhaps get up to 20-40% in total in the long run, but they are opposed to each other.
[0] http://www.wahlrecht.de/umfragen/