Mana cost of all new Spells/Ranks to be lowered in Wrath of the Lich King

Good news for all I would bet. We’d like to note that we are currently in the process of revamping the mana cost of new spells, abilities and the new ranks of spells and abilities in the expansion. We are aware players feel the mana cost of certain abilities is too high, and we agree. Though I can’t really go into much detail yet as the actual specifics of what’s changing is still being debated internally, be rest assured your voice on the issue has been heard and it is one of our top priorities right now. We’ve found the feedback from the players in Alpha and Beta to be more constructive and helpful than ever, and we hope that you continue to give feedback on your experiences in the beta. (src)