Latest I heard:

IF current attrition continues at the current rate, and programmed increase in airframes/flying pans out, we need to hire about 650 pilots over the next 2 years.

Probably our attrition will increase, and I think for sure we will have existing and new customers asking for lift above and beyond our planned increases, so I think the 650 numbers are the floor of new hires required.

Namaste...