Prediction: The miniset will make little impact on the meta besides select Hero Cards

PREDICTION:

Hate to be a doomsayer but I think the miniset just isn't introducing enough cards to successfully pull off Protoss, Zerg, and Terran archetypes for each class. And what they have shown doesn't look necessarily that powerful. I think a couple of the Hero cards might see lasting play since there are currently almost no Hero cards available in Standard, but besides that, this miniset will flop.