It seems like the classes have been cancelled for a couple of reasons. The additional 321 deliveries have apparently slowed due to engine issues, according to a guy who was recently in MIA. Also, heavy checks and deliveries are moving to Greensboro, which will affect MX and delivery capacity temporarily. Some 320s and 319s are being removed from service temporarily for heavy checks and paint. Additionally, there is apparently a greater need for 737 pilots to cover the planned summer schedule. Also, it seems as if we need to upgrade some more Airbus Captains before we need additional Airbus FOs. Rumor I heard was that hiring on the Airbus should resume in the mid summer. No idea how accurate any of this info is.