The letter says:
"MAIR Holdings, Inc. owns and controls Mesaba and Big Sky Transportation Company (hereinafter referred to as "Big Sky"). MAIR Holdings, Inc. agrees that pilots on the Mesaba Pilots' System Seniority List will perform all flying for it or any of its airline subsidiaries, except Big Sky. Further, so long as Big Sky is controlled by MAIR holdings, Inc., it shall not operate aircraft with greater than 19 seats."
It says nothing about any change related to the sale of Mesaba, the assumption is then that as long as Mesaba stays solvent, the letter remains in force between MAIR and us so long as we both exist.
If Big Sky is to grow, they need to be sold by MAIR or the letter has to go away. There must be a plan for Big Sky to grow, or there would be no motivation for this court move.