Yaoyao, Alhaitham, and Hu Tao have all been rumored to be on a banner for Genshin Impact 3.4. Other characters like Ayaka will also reportedly make an appearance. Yaoyao is even believed to be obtainable for free in the update.
Uncle Lu leaked that Hu Tao would have a rerun in Genshin Impact 3.4. Yaoyao, Alhaitham, and Hu Tao are currently considered the only characters to be "confirmed" for Event Wishes thus far. Every other character, like Ayaka, Shenhe, and Yelan, is part of various rumors that cannot be verified.
Both Yaoyao and Alhaitham have leaked gameplay videos on the internet right now. Since the 3.4 beta features them, whereas previous updates never did, it's logical to deduce that they are confirmed to be on a banner in this update.
All previously leaked characters (with as many gameplay details leaked as these two) have been playable in their corresponding updates. The only thing of note is that it is yet to be revealed which phase will feature these characters.
Alhaitham is a 5-star character, whereas Yaoyao is a 4-star character. It's currently unknown if they will be on the same banner.
Genshin Impact 3.4 will feature the third annual version of the Lantern Rite event. Current leaks point to Travelers being able to pick a 4-star Liyue character for free, which is what happened in the previous Lantern Rite events.
It is important to note that Yaoyao is a 4-star Liyue character, meaning that players can choose her as their freebie. Alternatively, they can select any of these options instead:
Hu Tao was leaked to appear in Genshin Impact 3.4. Like with Yaoyao and Alhaitham, it isn't yet known which phase of the update will feature her.
Based on past banners, Staff of Homa should become available on the Epitome
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