https://en.wikipedia.org/wiki/MacBook_Pro Believe it or not, MacBook Pro is the only Mac computer having at least one update annually. They also announce a whole new model every 4 years. After the original MacBook Pro, they kept this pattern and it is very easy to expect any updates every year. However, even Apple release one or two updates, it is difficult to expect the date of the update because it's random. At least, they update MBP once or twice per year. Simply - Every 4 years for a new model - Evey one year for 1~2 updates. MacBook Pro 2016 might be an exception which might be available in this year but we dont know anything about this model. So next year, there will be a new model with a new design for MBP series.