New rating in new season
According to Dustin Browder, matchmaking rating will soon change. Soon the rating will be reset, which might be eventually done on the regular basis.
Most likely the rating won't be fully reset. It'll be rather repeatedly calibrated. Such methods are often applied by many platforms and leagues. They enable to keep in rating only those players, who play on the regular basis. It will also facilitate the process of rank growth to skilled players and improve the quality of the game on high ranks. More information will be provided at the upcoming BlizzCon 2015.
One more news of the week was the introduction of a voice chat along with the release of Overwatch public beta. It is possible, that such means of communication will be available also for the players of Heroes of the Storm. The developers say that this option will be incorporated in Battle.net client, which is awesome!