Sigma has arrived in Overwatch
Blizzard have announced that the next champion to step into the fight for Overwatch is Sigma, a master of gravity manipulation. Manipulated by Talon and deployed as a living weapon, Sigma’s presence on the battlefield cannot be ignored.
In addition to a new character, they have announced that Role Queue is coming and is available in beta and is a whole new way to play the game, you can read all about it here.