The future for air crew will possibly be very more centrally controlled by third party companies and not the airlines - think pilots on demand, under bidding each other for each flight.
Now think of that and paying for their (your) own currency on type/s, or having to accept a "cheap" flight to remain current.
Most airlines would pay a fixed $ per flight hour, for crew to a (reliable) third party. Fixed cost are a bean counters dream - seniority gone in a flash!