AC doesn't want to stay with the 319s. It wasn't the best choice but likely what hey thought had the best chance of getting past the arbitrator in FOS. They have already approached ACPA about 320s at Rouge but with no gains for the pilots so they got a no. But IMO if they don't get them soon they will get them when the 737s start arriving at mainline and it would then be a short stretch to move to a 737 800/900 fleet at Rouge.