Just had a look at the Seniority list, which I keep a xls copy of every year.
The most junior pilot on Sept 1st last year was #2417, his position on the list as of today is #2327 so it looks like 90 pilots junior to him have left in the last year.
Also looks like the total increase in pilot numbers in the last year is about 350, is that enough with all the big plans?