The attrition rate so far this year for CC has been running at 40-45 per month. One Ab Initio course per month usually makes up for this loss. This is as it has always been. Fears of mass resignations of CC are unfounded. What happened to the mysterious 900 resignations that was rumoured just a few weeks ago ? That is what it was a rumour.
Emirates has thousands of applicants for CC positions. When you have one of the best route structures of any airline, then join Emirates and see the world. Emirates will never have a shortage of CC. It is not seen as career for most, but a time out period for globe trotting.