MoP is on the way, but hopefully, Blizzard doesn't pull another Cataclysm kind of move when it comes to the feature list. I rather not see many of the same rehashed features over and over again.
But many new things have been shown so far. PvE scenarios, and a new Melee healer, would be interesting. Don't forget the new Minigames.
But from your point of view, the future consumers of MoP, etc,
Are you satisfied with the current list of features in MoP, or do you feel that more should have been planned?