I am more interested in the rotation than the expansion. I think we might see some more interesting decks. I know that warlock loses very little but at least the grindy Nzoth warlock will disappear. New decks that might come is the re-emergence of secret paladin and tempo warrior. Mage will have to find a whole new playstyle and shaman got maybe some identity cards that will redefine the class as well (probably not good, shaman spells are ****-tier). Mid -range hunter will probably be played and is probably stronger . Secret hunter is probably still good without Barnes and with to my side. Rogue is having some burgle cards but it is not a strong deck. Miracle is still strong. Druid .. well no more jade druids yay! No more good big dudes though.. It will have to find some identity somewhere.