For a moment there you scared me (I have "N" class seats booked intra Europe early next year).

When I checked the rules on nwa.com concerning earning WorldPerks miles flying KLM, N class tickets earn 100% EQM's and WorldPerks miles, just like tickets booked in E class.

Now that I reread your O.P., I just realized you are talking about earning miles into FlyingBlue...