Overwatch Season 2 will commence on the 6th September according to the Official Overwatch Twitter account.
When commenting that the Overwatch team were working on making Season 2 as good as it could possibly be, Twitter user @Cru5hGaming asked when the new competitive season would start. The response put the start of the new season a lot sooner than we expected, just two weeks away.
Whether the new balance tweaks and new map that are in the works will be released before the new season starts is unknown but we hope they are so we can get used to things before going competitive.
@Cru5hGaming September 6!
— Overwatch (@PlayOverwatch) August 23, 2016