I've played a number of MMOs that offer the ability to change a character's facial expression (sad, angry, quizzical, etc). I think some games allow this to remain a permanent expression while others implement it as a temporary emote.
I was wondering whether MWM could include the temporary version as part of power customisation, so that we could have an angry face for certain vengeful powers, a beatific expression for heals, etc. -- going back to the character's normal face when the power animation ceases.
All completely optional on a per-character, per-power basis of course, with no expression change as the default. And definitely not a high-priority thing.
Spurn all ye kindle.