Not sure if this has been posted anywhere yet, but here are some of the breakdowns in levels for the level squish.
Info has been taken from the current Beta.
- Level 120 becomes level 50
- Level 110 becomes level 45
- Level 100 becomes level 40
- Level 80 becomes level 30
- Level 61 becomes level 25
- Level 45 becomes level 20
- Level 28 becomes level 12
- Level 20 becomes level 10
- Level 10 becomes level 5
Source.