As they warned us during the interview, the waiting time's gonna be long. So continue with your life while waiting. Easy to say I know.
But for NTSO it's more difficult for them to fit us in the program. Our training is longer than the rest of the pilots, and they have to find a Safety pilot for each one of us. Considering they're hiring 700 pilots/year, I can understand NTSOs are not their top priority.
Another (one among others) reason may be that they simply do not need NTSO for the moment, but they're still hiring because of the planes coming up this year. As Akbar Al Baker said, Boeing and Airbus and their severous delays on the deliveries blocked the QR's developpment plans. Once the planes finally fly to Doha, the requirements of other pilots and eventually NTSO will be higher.
Just my point of view