I have an intuition that they would like to release the patch first week of December, but it could be the second.
That avoids most of the vacation time that is certainly to come in mid to late December...because I think it would be PR nightmare for the patch to really need hotfixes and no staff available to fix and stage.
That's my thought on timing...and of course, I prefer it sooner than later, but December *is* a good month to spend a lot of testing/playing.