ESPN is rumored to have a BlizzCon training document that details Overwatch 2. Leaked information states that Overwatch 2 will include a PvE and narrative-based missions with "a four-player story experience set in Rio de Janeiro". The mode is reported to also include "Hero talents and in-game items".
There's a new multiplayer mode called Push and it has a new map that's set in Toronto. From an ESPN source, they expect at least one new hero, and the PvE and Push game mode to be playable at this year's BlizzCon, where Overwatch 2 is rumored to be announced.