We are hitting the knee of the curve. American, Delta, and United (plus others). This kind of heavy recruiting will repeat, year after year, for several years.
This is going to put a major strain on regionals, etc. The supply pipeline world is going to change.
Of course, some will say massive furloughs are just around the corner. They also say the world is flat and we need to install more tanks spraying Chem trails. I think they will be proven mistaken on all accounts.