In theory, the extra healing through Plenary Indulgence & Confession, and the shorter CDs could probably mean WHM can just go DPS the majority of the encounter. But that's about it.

We still don't know if any other abilities have had changes to them. But the barrier CD can be shorten from 60secs if you have more lillies but doesn't increase the potency past 15% of max hp.

My main issue is everything "has a chance to do something"