Thanks, although I suspected there was not too much on offer, I just wanted to make sure. I will be flying HKG-CAN-HKG in a short while (for crazy reasons, I know it's better to take the train) and am holding upgradeable H class tickets. So was wondering it was worth the 20K AM for a roundtrip upgrade.

The answer seems to be a resounding "no".

Thanks to all for your input.