Actually, a lot of new things for 0.7 are already done, and some more interesting things are planned. For example, 0.7 will feature a new gametype, which is based on the survival mod. The main menu and the UI in general will get a complete overhaul to make it more intuitive and aesthetically pleasing. 0.7 will also feature new maps and a new skin system, which allows more customization.
As I said, a lot of these things are done already, but not everything is completed. At the moment, development is more or less stalled, because some core developers are not very active at the moment. However, a lot of patches have been sent in by other developers, they just need to get merged. I don't know when this will happen and when 0.7 is finally ready to be released. Actually, I believe, that it might still take quite a long time, even though a lot is already finished. I hope you find the patience to wait for 0.7, because it will feature some really great things, that are worth waiting for.