According to a viral tweet by nova that states that is a Genshin Impact leak, it is stated that Yae Miko has been delayed to 2.6.
Genshin Impact fans have been quite worried about a recent rumor that has been making rounds on the internet, which suggests that Yae could be delayed from the upcoming update.
Along with that, it adds that Tartaglia will be replacing Yae for the first half of the 2.5 Update.
Firstly, miHoYo has already announced Yae on their official Twitter handle, so there is absolutely NO way that it will be delayed to the 2.6 Update.