The Dark Apostle wrote:But what new classes and style of decks would be given a chance, I doubt things would stay the same
While Handlock and Zoolock are mostly good against opposite kinds of decks, they are both considered average-to-good against Tempo Rogue, Ramp Druid, Midrange Druid and Zoolock and average-to-bad against Midrange Shaman. Presumably, this would make Tempo Rogue, Ramp Druid and Midrange Druid increase in popularity and Midrange Shaman decrease in popularity.
In turn, Tempo Rogue, Ramp Druid and Midrange Druid are considered average-to-bad against Miracle Rogue, Ramp Druid and Token Druid and average-to-good against Tempo Rogue, Control Warrior, Aggro Mage and Shockadin.
All in all Ramp Druid would probably be the biggest winner, since it's one of three archetypes that gains the most from the fall of the Warlock, and the rise in popularity of those three archtypes gives it even more good matchups.