My personal wish list:
First and foremost, give back the good ol' Aero III
Cure II
Potency bumped to 900p
MP Cost = 800
Cure III
Potency bumped to 650p
Extend the radius to 12y
Cast time = 1.5s
MP Cost = 1300
Medica I
Cast time = 1.5s
MP Cost = 700
Medica II
Upfront heal bumped to 300p
MP Cost = 900
Regen
Potency per tick bumped to 300p
Afflatus Solace
Unlocks at lv35.
Afflatus Rapture
Unlocks at lv62. At the same level grants 5% MP restoration for using healing lilies, including Solace.
Asylum
Cooldown reduced to 60s.
Duration shortened to 18s.
Tetragrammaton
Each use reduce next lily timer by 15s.
Gains 2nd charge at lv78.
Fluid Aura
Returns at lv15 but effect changed. Functions as baby version of Aquaveil.
Divine Benison
Breaking the shield reduce next lily timer by 5s.
Assize
Gains an upgrade trait at lv68. Grants "Tornado Ready", enabling the execution of instant GCD "Tornado". Last for 30s or until Tornado is used.
Tornado **NEW**
Deals wind damage with a potency of 420p to one target and 70% less to all nearby enemies. Also inflict wind damage over time with a potency of 50p for 21s. (damage fall off also applies)
Can only be executed under the effect of "Tornado Ready". Replaces Aero III hotkey until "Tornado Ready" is spent or expires.
Radius = 6y
Afflatus Misery (Two Alternatives)
#1 Simple potency bump to 1,240p, OR;
#2 Slight bump to 930p. Each Misery cast grants 5 stacks of "Glaring Inspiration", raising next spell potency (includes healing spell) by 20% while also eliminating cast time.
Liturgy of the Bell
Duration extended to 20 seconds.
Healing waves now have different conditions of proccing and how it affects the outcome:
#1 Procs at 400p/wave if the WHM is hit. This condition nourishes blood lily at the same rate as using healing lilies.
#2 Procs at 300p/wave if the WHM detonates the waves manually by pressing the hotkey. No blood lily nourishment, but reduce next lily timer by 3s per stack.
#3 Procs at 350p*remaining stacks if the timer expires on its own. Reduce next lily timer by 5s for each remaining stacks. Also no blood lily nourishment.
Some numbers are whacky I admit (especially the additional damage spell and the lily timer reduction), but decided to just put in some ideas that's been circulating in my head.
Also I liked Silver-Strider's idea to add back Stoneskin and Divine Seal. I'd love to have more things to weave that low 
EDIT: I forgot to add that Freecure should've been an upgrade of Cure I to Cure II lol.