HoYoverse revealed more details about the next update for Genshin Impact, as the content will be coming in early November.

source:THE PLAY STATION

 The update is going to bring in a few new additions for players that will give you several hours of gameplay and new things to do.

source:esport

 This includes getting the grand finale of Sumeru Archon Quest, an epic battle against the third Fatui Harbinger Boss, The Balladeer;

source:esport

 two new characters being added in Nahida aka Lesser Lord Kusanali and Layla

source:esport

The Fabulous Fungus Frenzy event where you will have a chance to catch and train your Fungi  and the addition of Dendro Hypostasis as a new boss enemy. 

source:THE GAMER

 We have more details from the devs below as the update will launch on November 2nd.

source:RPG

"After the Sabzeruz Festival, samsara, and a thrilling trip into the desert, the Sumeru Archon Quest will finally conclude with its last chapter, "Akasha Pulses, the Kalpa Flame Rises

source:THE GAMER

While the Traveler teams up with various characters to rescue Nahida from The Doctor's nefarious plot with the Akademiya, the third Fatui Harbinger boss will stand in their way.

source:THE GAMER