As it stands no current FOs will be able to fly the jet unless they've been here more than 4 years. An FO would be a fool to bid FO on the jet because that would lock them out from bidding CA for 2 more years. It's effectively a 6 year seat lock.
So new hires who get in the first jet class will have super seniority for PBS, weekends/holidays off, lineholders etc. Their pay and quality of life will dwarf any veteran FO who's been stuck on the Q.
Management said no base closures for 2017, for what that's worth.