The changes I'd like to see to the new WHM mechanics:
  1. Make all abilities only consume one ability upon use, but still get the benefit of the total number of lilies stored
  2. Make confession stacks have infinite duration
  3. Synergize lily generation with the rest of your kit - White Mages have a conjurer background with elemental balance as a key story point. Make each Lily based off an element and can be procced via spells of the same element (Earth, Wind, and Water - you'll probaly want to make Cures a Water element at this point)
  4. Secret of Lilies II should have a 100% Proc on critted Cure or Cure II (at least that's how I'm interpretting the tooltip, seems sorta vague to me)