not sure exactly when it might be released, but the latest addition to the changelog was on october 9th.
so far two runtime fixes, two plugin fixes, two behavior fixes, and one each addition to the sdk and to the 360 plugin. haven't checked the svn to see if anyone's been doing any fixes behind the scenes and haven't had the chance to update the changelog
so there has been some stuff, but it's been close to a standstill for a while. just give it some time, I think things will eventually pick back up, also, we have a few sdk trainees learning the ropes as of late, so they will probably eventually contribute as well