Well if the Omni glass are a reality and wonderbook takes off, you can expect a tv free wonderbook experience where you see magic through the Omni glasses. It makes too much sence, so i doubt it Sony will do it.
Book of Spells is the game about Harry Potter, Wonderbook is just the AR book. I have a feeling many are confusing the two, and I don't blame you because Sony hasn't been the best explaining what it is.
I doubt it will take off because people really need to sit down and grasp whats going on the TV and the move. For this you need space and I don't think retail stores are going to give store space to product that hasn't prove itself yet.