"Because each guy that comes back has most of their salary paid for by the pension plan instead of the company..."
EFL, I'm not sure that this is correct. Because of the CHRT Remedy Ruling, both Vilven & Kelly are once more active pilots [or will be once they pass their requalification course]. They will no longer be retired pilots, drawing a pension from Air Canada Pensions Administration but will be drawing a salary from Air Canada. They will both be accumulating further pension credits, at least Vilven will, something that they could not do if they were drawing down a pension. I believe that Neil Kelly had in his max 35 years of pensionable service time when he retired so he would no longer accumulate pension credits.
Both, however, will be on the Air Canada payroll, not the AC Retirement Payroll.
Rgds.