"The 5-week course will begin in late April 2014, with enrolments opening in early March."
Source:
http://www.cs.waikato.ac.nz/ml/weka/
"Data Mining with Weka is a 5 week MOOC, which was held first in late 2013. Check out the MOOC site for video lectures and details on how to enrol into this course and a new, advanced Weka course."