The official "PlaneShift" website has been updated with a new interview explaining the reason for the delay in release.

Erik - Sorry for the straight question, but Crystal Blue release is late, what are the main reasons for that delay? Luca - The main reason connected to the delay is that new version is quite challenging in terms of technology and new features. There are three major technology pieces that we have to deal with: cal3d models, new renderer and terrain engine. Each of those bring some good enhancements to the game, but also are costing us time and efforts. I will give you a brief summary of each.

The interview also includes 4 new renderings of the Arena. You can read the whole interview here at the official website.