Looks like there will be no on-arrival airport serology antibody test until at least mid-August:
https://www.scmp.com/news/hong-kong/...rport-antibody
Although the HK gov website still shows a July implementation:
Depending on the implementation progress of the relevant facilities, the Government will implement the second-phase arrangements within July to provide self-paid serology antibody testing service for inbound travellers at the airport. According to the above arrangements, the compulsory quarantine period for those with a serology antibody positive result will be shortened to seven days, and the entry to Hong Kong by relevant non-Hong Kong residents will be relaxed. The operational details of the measures concerned will be announced in due course.
Curious if the antibody test scheme (both phases) will eventually be rolled back entirely, or if HK gov will move forward with phase 2 and still restrict it to HK residents. I don't see how a HK resident who took an antibody test before travelling abroad is any more likely to carry the virus than a HK resident who takes an antibody test upon return to HK.