Have an upcoming flight in about 3 days, where SQ will usually open up additional seats in Economy. However, first time I have seen this. In the rear cabin of their A330, there are 119 seats and so far only 20 seats are taken, including 2 that are bassinet seats. I have never seen a seatmap this open 3-4 days prior to any flight on SQ.

is this truly the sign of an empty flight? FWIW, it's a midweek redeye but last time I took this same flight, on Thursday morning, every seat was taken.