How fleshed out will it be? What are the options? Will the appearance change again? Is it only for stats? Can you customize your fangs? Nails? Hair? Size?
Clothes? What?
It will me more or less like the first one. We are gonna get some number of options. It's not only for stats. Apparence, nails and hair may, or may not be able to be changed on it. It's difficult we will be able to change size. To change the thinblood clothes you can also use a wardrobe
My uncle who works on Nintendo told me all of this
Since we will choose our thinblood discipline at the start ... i believe you mean puny thinblood, and then promoted to actual Vampire (or Toreador)
If i recall correctly we start the game as a thinblood, staked and getting delivered to our trial to tell our version of the facts. Then we tell how when the thinblood was still human did go to Pioneers Square and got embraced. Then explosions happens and you are free.
Kinda we start as a thinblood, but kinda not. One of the things it was said about the character creation was that we were able to choose our previous mortal life, game developer, barista, youtube star, that kind of things.
Check
this video from Outstar, she recreates the begin of the game. She says she didn't saw the character creation, it was a demo on Berlin, but she saw how the game begins. After that, we track down what happened to the thinblood, the demo we have see a thousand times and counting happens and then we get to choose a proper clan, like the malkavians, or we can go the Twilight cosplay by choosing Toreador, not that there is anything not-wrong on that