Overall it looks like miles will be worth less than before with the distance-based award system. I haven't crunched all of the numbers for all routes, but award tickets for flights between the US and Korea will all cost more under the new system except for Honolulu which will cost slightly less than it does now.

On the other hand, changes to elite qualification look great. I'll easily qualify for gold under the new system (only a lowly morning calm now) which means sky priority, lounge access, skyteam elite plus, etc. I wish they would change this today instead of waiting until 2022.