Waivers includes travel to HKG as well. I had a flight from SIN to SFO on Feb 16 with 24 hour layover in HKG and I was able to get full refund issued for my Z class ticket.
Additionally award tickets are fully refundable including the non-refundable spontaneous awards. I have a I class ticket from SFO to HKG next week. I was given option to rebook to another date where an award is available including advantage award without any fee. I do not know the date restrictions. But I only asked for couple of days later. They had advantage award only for next day and were ok to change. Would not budge to couple of days later when revenue Z ticket is available.
Re-routing requires re-pricing but change fee is waived.