People there is only one solution no matter how many plans we come up with:
Age 65 for all with a substantial payrise on the FO scale to make up for earning losses/bypass. It is simple and avoid ten years of squabling about who gets bypass and who doesn't etc etc etc.
They could sweeten the deal by letting the housing run for 25 years instead of 15 to calm down all of those who will have to spend more time in HKG due lack of bases.
This should be the goal of the AOA.