With the supposed upcoming healer re-think the devs are doing I think a change to PoM isn't off the table. That said I don't think PoM necessarily needs too much tied to it aside from the spell speed buff. I wouldn't mind seeing interaction with other spells though. Maybe double the cool down reduction effect of lilies, reset cool downs once entirely (this might be too good though), or just enmity down perhaps? Those would be nice but I'll live if PoM is unchanged.