We have some new Genshin Impact leaks from 2.2, seeing pre-installation is here and has been data mined, most notably revealing new “About” voice lines referencing Shenhe and Yun Jin for the first time, confirming once and for all the two waifus will be playable in the future.
Shenhe and Yun Jin were among the first characters data mined in Genshin Impact before release one year ago, but they were never officially confirmed until now.
In Genshin Impact, the already playable characters often have voiced lines on their profile page regarding unreleased or unrevealed characters.
Lastly, keep in mind this is not necessarily a sign that Shenhe and Yun Jin will release soon.