This just popped up in my google alerts (looking to break up a QR TYO trip).
NRT-BKK/SIN/MNL/CGK/SGN
Looks like there are similar fares to most popular destinations in asia, so have a search.
I haven't tried pricing any crazy tier point runs, but NRT-KUL-BKK rtn would get 360 TP, so sub-£2 per tier point with BA, which is not too shabby.