Rumors in Hong Kong are that they are considering transfers from airport to cruiseship or vice versa as in transit - this is a means to circumvent that 7-day quarantine for in-coming visitors. Currently, if you are in transit at the Hong Kong Airport, you do not need to be quarantined or need a covid test. I suspect that it will have to be by cruiseline bus transfers in order to minimize contact. So, pre-cruise or post-cruise in Hong Kong looks out of the question. Since Hong Kong is following China's guidelines, that 7-day quarantine may be there for an indefinite future. I don't know how workable this transit option will be as it will pretty much require all passengers to arrive or depart on day of departure/arrival. It will require some passengers to stay at the terminal for a few hours before boarding a cruiseline's bus for transfer. I will be arriving on April 4, 2023 in Hong Kong on the Windstar Star Breeze, but it holds only 312 passengers. So, it would be workable for us. But much larger ships will have logistic difficulties. All of this is speculation, but it does show the limited options that the cruiselines has to face. I can see it work for ships under a thousand passengers, but as the ship gets larger, there are only so many airlines flying in or out of Hong Kong. On the other hand if your ship is just visiting Hong Kong for a day, expect Hong Kong to become a sea day or another port will be scheduled.