I haven't seen this mentioned yet but there are increases in the international copay and the addition of a domestic copay. It says if you have booked and upgraded before March 1st you will be grandfathered in.
Hawaii Domestic Upgrade was 15,000 now 15,000 plus $150
International was 25,000 plus $250 now 25,000 plus $300
here
Edited: I misread the Hawaii part at first as well