Blizzard announced that the Season 2 Developer Update livestream will happen on October 4 at 11 a.m. PDT! The blue post also mentions that a Campfire Chat about Season 2 will be held one week later, on October 10.
While the first Developer Update will go over the seasonal theme and quality-of-life changes coming with Season 2, the Campfire Chat will feature discussions around upcoming system reworks and class balance changes. Season of Blood, Diablo 4’s second season, will start on October 17.