Eventually Hong Kong (and mainland China) will lift pandemic restrictions. The city has focused on its relationship with Beijing, and the Peoples Republic of China has kept draconian Covid restrictions because much of its population has remained immunologically naive and they’ve been unwilling to using mRNA vaccines (since those represent failure of Chinese science compared to the West) and other key treatments.
China needs to keep Covid-19 in check until getting past the 20th Peoples Congress at which President Xi is expected to break with convention set by Deng Xiaoping and receive a third term. Uncontrolled spread of Covid (and invasion of Taiwan, for that matter) represent too much risk to take on for the Chinese leader before that.