The changes in 1.9 to the different classes and their abilities are pretty minor, except to Paladins. There is one across-the-board change that I’m glad to see fell through: there are different abilities that many classes have, often through talents, that grant a chance that various attacks or spells will briefly stun the target. The problem with these spells is that they force subsequent stuns to last for shorter periods of time. But in 1.9, these spells will no longer affect the duration other stun abilities or be subject to diminishing returns. Besides this change and the changes to paladins, there is little to be said. Hunters seem to have a small buff, while horde warlocks will have a nerf in the form of paladin Exorcism and Holy Wrath spells working on their demons. Also, mages can conjure endgame water more conveniently. There was some shifting-around with a handful of abilities; like Troll Berserking has had some trade between duration and effect, for example. However, there isn’t much to say about most of the changes to classes besides the changes to paladins.