Apparently from the aftermath of the soon going to change rules on BAEC and discovering this subforum, I spent a few days trying to understand the DONEx rule and it looks like still doable with BA in a well-planned itinerary with maximize usage on AY/QR/JL.
based in HKG, so apparently taking advantage of the ex-Japan fare would be most convenient not to mention the low yen environment(currently).

tried to construct the below routing that might suit my travel needs but not quite sure it is valid with the rules as oneworld's online tool keeps hanging. if that's valid so far only filled 13sectors in it but seems to cover my travel this year. for sure welcome suggestion to fill up the rest.

HND-JFK-LAX-SEA-DOH-VIE-DOH-LHR//CDG-DOH-AKL-SYD-HKG-BKK-HND

stopover likely on JFK/SEA/VIE/LHR/AKL/HKG/BKK, haven't checked on anything yet but seems some sectors are likely facing D fare availability issues.

once again ,appreciate for any help