You are correct about the HK case. However there weren't many observers who though Phillip Morris stood a chance. The lawsuit was much more about signalling to

You are correct about the HK case. However there weren't many observers who though Phillip Morris stood a chance. The lawsuit was much more about signalling to other countries considering plain packaging than actually overturning the laws in Australia. There is still a pending WTO arbitration which is also expected to be decided in Australia's favour. See also the outcome of Phillip Morris v Uruguay