I wonder if we'll get one more change out of the characters, or if they're locked in. Obviously there are a few variables we've found in the code for some tattoos on Holly, Lena, and Ian that haven't been implemented yet and Eva has talked about the potential for facial hair for Ian.
But I'm talking about overall appearance. Like will there be another wardrobe change for Allison, Emma, and Cindy or really for everyone? Honestly I'd like to see Cherry, Ivy, and Louise get some updates, as they've been very static with their wardrobes. Will Holly, Ian, and Lena get another physical appearance change to match their fitness levels? Will I ever see Allison with a navel piercing again?! With the characters at the beach, and Cindy on a boat, it would be a good time to introduce tans.
There will probably be some final appearance changes for the ending scenes like there were for GGGB, but I'm thinking more what they'll look like for the next 2-4 chapters or whatever. Again, just another example, Ian can tell Emma he likes her sluttier look at the beach and she'll change into her club outfit. What if when they get back Emma and Lena go on another shopping trip and Emma buys a new outfit, maybe with Lena's help?