Kamisato Ayato is a highly anticipated upcoming character in Genshin Impact and is on par with Yae Miko in terms of popularity, and his appearance has reportedly surfaced through leaks. He was first mentioned in the story right after the Inazuma 2.0 update, by various Inazuma playable characters and NPCs alike.
Update as of 12:57 pm GMT: The character information has been announced officially after the Reddit leaks thread went viral. So this is not a leak anymore, it has become official information.
Until now there was absolutely no information about his appearance and artists have made countless fan-made speculation of him, some fan-arts made him look very promising, so it is tough to know how the fan base will take in his official looks now. Recently, hints towards the expansion of the Mondstadt region in the game were also leaked.
Genshin Impact Ayato appearance leaks out: What we know so far
His appearance should have been officially revealed by miHoYo on February 5, right after the Genshin Impact Special Program Stream for version 2.5. However, his appearance was revealed by the Reddit user G4kky rather early. Kamisato Ayato is estimated to be a Hydro Sword user, but there is no information about his skill set which will be most likely revealed after the beta test for 2.6 starts in a few months. A promotional video-like image (below) for Ayato was leaked prior to the recent leak, which further solidifies his appearance.
Lore wise, Ayato is the older brother of Ayaka. He is a very prominent figure in the Yashiro Commission and usually works behind the scenes which explains why he was never seen in the game till now, even when the Inazuma region has been out for a while now. Ayato is also known to pull mischiefs on the Tri-Commission business but his loyalty for the Shogun gives him leeway most of the time.
When will Kamisato Ayato arrive in Genshin Impact
Kamisato Ayato will be available as a playable character in the game in version 2.6, many leakers have claimed his estimated arrival to be in that patch. There are rumors that his banner will run alongside the rerun banners of Ayaka and Yoimiya.