Right now we're going through a slower than the last few years period. Disposing of 767 and gaining a330's. but only outpacing the disposals by a few airplanes.

If all works out I assume the next " wave" of hiring could be shortly before the a321's arrive. Say around 2016 or sooner if the a /c arrive sooner.

Then there's always hiring for attrition. Slow but steady attrition