After a flurry of work through 2010-2011 leading up to V3.0, available developer time is again probably going to be quite limited, and it's back to just minor enhancements and fixes for the time being.
Next release contents
Nothing is anywhere near decided yet but the most likely candidates for the next big version are one or more of the following. In order of attractiveness to code, and therefore likeliness:
See also the wish list.