re NCL-DUS:
Have in mind that Eurowings is phasing out the CR9 and replacing it with A320s. So some of the routes that did well with the CR9 will not make the cut with the transition from 90seaters to 180seaters. In anticipation of that, Eurowings has already cut some of the CR9 routes from DUS (eg. TRN, POZ) or consolidated routes that were twice daily in the past into a single daily flight with no day return option.