RE Germanings:
The Germanwings reductions CGN/STR -STN stem from the decision by LH to use 4U to serve LHR three times daily from those airports, which resulted in a capacity increase on those routes. May have to do with preserving slots at LHR.
In terms of HAJ, it will be interesting to see what happens on that route over the next year, as BA will more than triple capacity on the LHR-HAJ route as of end of this month.