I took a quick look at the pattern of reporting this year, and here's a quick summary.
Q1 production -> reported on April 26
Q2 production -> reported on July 11
Q3 production -> reported on Oct 18
Taking the average of these, it looks like management is taking about 18 days following the close of a month to pull all of the numbers together ... so that suggests we could hear something on Shafter by the middle of next week.
At the same time, with the significance of the Shafter mine and everyone watching closely, I would think that they will want to "get it right" and put their best foot forwards ... while not waiting too long so that everyone is focused on Christmas rather than the markets.
Just speculation on my part, of course.