While XBMC Eden 11 is now available in its final version for a few months, developers from the XBMC team announced the launch of an Alpha version of XBMC 12 Frodo. Time to enter Middle Earth;)
At the moment and logically, very little information of what the new version of the XBMC Media Center will contain except the big outlines. Developers announce therefore an important update with the uPnP access to meta, images and library functions including watched and unwatched status that was buggy on Eden.
New advanced filters (title, year, actors/actresses, director, etc..) will also make an appearance on Frodo, a more formal PVR function support and Timeshift (pause programs), improving the OMXPlayer of the Raspberry Pi and including support for DVD ISO.
For a complete list of new features, you may check this, and for the more adventurous, the XBMC Frodo 12 alpha version is downloadable at this address. A first beta should happen very quickly in mid-November.