Well there are 7 A321's due next Summer (4 second hand) and 1 A321 leaving, then I would say if they are all for replacements, LA, LJ, LK, CD, CE and CG will not be in the fleet in Summer 2015 and Then if there are more A321's due for 2016 then the other 4 will go then. I'm not sure if the Boeing 757-300 are supposed to be leaving or not.