I think they're working behind the scenes a bunch on their full 3D version, developed with the Unity engine.
I managed to log on the demo a while back, looks like they've put a lot of money into it, although it still felt like the clunky original programmer's game play, with terrible multilingual quality control, overlapping strings all over the UI.
Edit: I just realised i called it full 3D, yeah.. whatever you want to call that, advanced 2.5D gameplay