Hi LBee,
I have heard about that as well, I have got the flight from Singapore with Singapore Airline (Purchased 2 months ago). Yesterday the airline did send the confirmation that the flight will happen (I try to arrive before the first entry date 15 Oct), but it is still nearly 4 weeks to go.... so like you said...nothing is guarantee until I'm really on the flight. Do they let you know well in advance about the flight? or just 2-3 days in advance?
Thanks.