Eventually Hong Kong will no longer be a special administrative region (the 50 year commitment will end) and it’ll be part of Mainland China governed by the communist party.
Businesses such as Swire and other British businesses will move out of there meaning Cathay will either
1) Be bought out by Air China
2) Move its entire business to the UK and rename to Cathay Atlantic.
So think 2x before you commit to Cathay. It maybe sweet now but it’ll definitely be sour as China slowing takes back Hong Kong.