Welcome to Bimmerfest! I moved your thread over to the F30 forum. I don't think the refresh will come until the 2016 MY. If you think in terms of years, the F30 went on sale February 2012. The LCI (life cycle impulse) or face lift is done half way through the life cycle, which would mean at 3.5 years we should see the face lift. That would be summer of 2015, which is the production switch over time frame for MY 2016.
First Drive: 500 miles with the 4 series coupe