TKs route cuts are almost endless:
Shorthaul:
http://www.routesonline.com/news/38/airlineroute/268589/turkish-airlines-w16-europeshort-haul-service-changes-as-of-27aug16/
Longhaul:
http://www.routesonline.com/news/38/airlineroute/268588/turkish-airlines-w16-inter-continental-service-changes-as-of-27aug16/
So yes the reduction is nothing to do with the competition with the ME3 etc, more the political situation in Turkey.
I can see a lot of aircraft being parked this winter and possible order deferrals / cancellations on the horizon.