Originally Posted by WhiskeyDelta

You have an enforceable contract that stays in effect in perpetuity until a new deal is agreed upon. Read in your Scope section about successorship. The cliff notes version is that any purchaser, as one example, must recognize your CBA if ZW is bought. Since PSA is also ALPA, there would have to be a formal seniority list merging process along with another negotiation to create a joint CBA after the merger/acquisition. It's not as simple as you make it sound and certainly not as easy for PSA or any other potential suitor to just swoop in and save ZW.