possibly already mentioned but since I dont have time right now to check and if I did go check I would forget what my ideas were ::S
1 -(could go in the marketing section) Option to sell your airline or buisness as a franchise or to sell completely moving all aircraft, flights, airport slots and offices, contracts ect into the new owners control as a sub firm, or option to sell airport flight slots(handy for those busy airports where you want a plan but there is no space)
2- Real event triggers (Most likly to expensive and complicated to set up) i.e airports closed for weather ect,