The thing I noticed perhaps most as missing from the SIN-NY non-stop flight was the lack of any other space to be, apart from your seat (and the toilet, which is just another seat LOL). I really got the feeling that I wanted to leave my seat for just a while and get a change of scenery, stretch the legs - so basically, something like a stand-up bar or even a lounge area. We of course know those are not SQ's thing, but doesn't change a desire for such.