That model leaked God knows when.
It's very old, we really don't know how she looks now and who is she.
IIRC old leaks were saying that she's a Cloud Retainer's human form and is secretly in love with the Traveller lol
They've gone the self-insert direction with Traveler, so every character is going to be travelersexual. I don't really care one way or the other, but it is interesting how the changed some married and otherwise unavailable characters. Ayaka's the obvious one. The old story was something like that she was married to the head of a clan which hamstrung her ability to do anything to help the people, which is why she asks for help. They turned her into the biggest waifu bait in the game so far. I'm sure it makes more money if every character is into >you<. The old story is mostly just hearsay anyways though, maybe it never existed to begin with.
I also heard rumors back in the day that Shenhe's kit got gutted and given to Eula, so there's a chance she's not Cryo or a Claymore now. I hope that's true. A Hydro spear or Geo bow would be nice. I don't need any more Pyro/Cryo characters for a long ass time. Yunjin used to be Geo bow, but word is that she's been switched to Anemo something.
Wonder when they're going to introduce new weapon classes to the game? It's only a matter of time, it shakes up the gameplay and forces EVERYONE to pull/craft new weapons. The anniversary would have been a good time to announce such a thing, but well.... Maybe Sumeru. I'm hoping for whips, scythes, guns, gauntlets/fists, maybe 2h axe.
Also, I put some lore videos on to fall asleep to last night, but I thought this one was interesting. Not all of her points make sense, but it at least explains a lot of outside elements to the game that people just take for granted like the wish system, and Paimon's role, character switching, etc.