Prediction: Every class will dualclass with death knights upon their release

Title essentially

With all this hub bub around DKs potential introduction into the game I wanted to posit my theory, since they'd need extra cards to start them on their journey. What better way to introduce their mechanics and connection to each class than via dual class cards? Flavor wise this could be presented as the other classes being corrupted and turned undead!

Curious on anyone's thoughts.

P.S. I still think there's a small chance that this has all been a red herring and we get Evokers next expansion