With rapture (disc) and serendipity (holy) both no longer returning mana on heals and the huge nerf to regen OOFSR, I'm worried about how priests will fair with healing, especially in longer or harder fights. I'm no longer sure as well which spec is better. I really like that divine aegis can stack now, but holy looks quite nice too. It seems the new rapture penalizes having a stronger shield as it doesn't return mana unless it's completely removed.