As far as I know, the 2014 model is supposed to work with spacers (which are forbidden for the current model) and thus will provide compatibility to Kris’ EDB standard (external disc brake). The latest thing I heared about a release date was fourth quarter of 2014.
Many people asked Florian about this new generation and I have heared many things about it, but do not know what is truth and what is wish or fiction. Some say, there will be two versions. Others tell Florian said the hub will be narrower and have a seat for a disc brake rotor. Another change could probably be about torque support (or anti rotation system as you call it).
One guy wrote to Florian and got an answer which I will quote here:
Translation:
Until now, I have not heared anything about the price.