Is there going to be a basis that PCs are based on, or is it going to be a "go for whatever you like"?

Tiny threads ftw You are being served by Nymus powered by black boyshorts with black lace, a pink bow, and pink ribbon and a hot pink and black lace, totally frilly.

As far as i know, they haven't said.

But if it followed FO1+2, it'll be a "go for whatever you want" type of character creation/development.