Easy math says that current staffing is around 15.5 pilots per airframe, and with a nice round 350 airframes when orders are complete, that means 5,425 pilots.
So unless the pilots per airframe number goes up, it's pretty easy to compute.
Best case scenario the 190's don't get parked, and it's more like 410 airframes, then say 6,355 pilots.
But those are totals, there are already 4,000 pilots on property.