2012 was heralded, largely by people who had never taken any, as the year of the MOOC. 2013 was heralded, largely by people who hadn’t taken any, as the year MOOCs died, 2014 saw realism emerge with a swing towards real demand (vocational) demand and 2015 finished as what Stuart Sutherland called “the actual Year of the MOOC”. Here are his reasons for this last statement:
http://donaldclarkplanb.blogspot.ca/2016/01/10-reasons-why-2015-is-year-of-mooc.htm