Update 3.1 will expand the Sumeru region and add new content.
The update, titled King Deshret and the Three Wise Men, will add a large-scale desert location to Genshin Impact, in the center of which will be the Mausoleum of King Deshret with dungeons, new quests and bosses. The game will also feature new heroes and the Wine Festival kicks off with mini-games and rewards.
The Genshin Impact update will be released on September 28th. More details you will find by following the link