The last both production updates were published at:
Q4 / 2012 (Jul-Sep.2012): 11/14/2012
Q1 / 2013 (Oct-Dec.2012): 2/19/2013
If they maintain the timing, we should get the next production update this week, next week at the latest :
Q2 / 2013 (Jan-Mar.2013): 05/XX/2013?
The official quarterly report Q2 / 2013 will be published at the end of May. A Corporate update would also be more than desirable (the last one, addmittedly and surprisingly, very informative (the first one in MJS history ! :-( ), was published in 2/1/2013)