I'm really excited for this. Never got into CCG's cuz most seemed to have complex rules and having to buy physical CCG's wasn't my thing.
But casual game, simple rules, F2P, Warcraft-themed but still with enough strategy to make it a challenge? Sounds good to me, I'll give it a spin! Would just hope that one could choose their hero instead of mages having to be Jaina and warriors having to be Garrosh, etc. Would be neat to be, say, Velen as a priest or Anduin, or Grom, Garrosh, Varian or Genn.
But nevertheless, really looking forward to seeing more of this, looks neat! =D