One can only hope with regards to Singapore, people have been begging for SFO and SIN (and HKG) for ever and the codeshare with SQ from CPH is always full. Given the success of the SFO route after they listened to their customers for the first time ever, it might be the case they are going to do this a second time and start SIN.
Fully concur regarding the CEO article about IAH - what a joke.