In terms of places where I'm eligible to buy I have a choice of the UK with Brexit and HK without the 30% tax because I'm married to a local. Not a great choice!
Plan to remain... that's the problem. I find it hard to plan with current events. I guess the only thing to do is not try to forecast the future and look at how things are now. But even that's not easy because while HK is massively better for work... we need to establish my wife's option to live in the UK. At the moment we could be married for 50 years and she'd still not be allowed into the UK when I die.
So do we make hay here while the sun shines in terms of work... or drop it all and start afresh in the UK just to be get the same residency status as we have in HK. It's a terrible dilemma.