Smart money is leaving quietly.. take advantage of the strong USD/HKD now and change it back to AUD/CAD/GBP/EUR or even THB if you're planning to retire there.
The HK$/US$ peg is being backed up with HKMA reserves as it takes a hit from the trade war. This cannot go on forever. A de-peg will take a big chunk out of any HK$ savings. And then? Some experts think a peg to the CNY makes better sense, which will be a death knell for the HK$ as there will be little point with continuing with it..