Hong Kong as a financial hub is still going strong and will be for a long time yet. As an out of work pilot now working in the finance industry in HK I can see the money is still flowing. IPOs from China are coming thick and fast and the values are huge. US listings of Chinese companies on the NYSE and Nasdaq still come through HK and if US scrutiny and curtailment of those companies continues that will only strengthen HKs position.
It is a city full of well educated and financially literate graduates with high standard of English spoken. I don't have any concern for HKs financial future.