I'll start off with a few.
Decisions actually matter: I'm not talking about a decision as in who lives or who dies but something else to give the game a more personal experience, for example; Sarah starts to cry in a scene if you've been acting too much like a friend to her compared to if you've given her tough love and tried to teach her to survive she won't cry in that scene saying she's "trying to be strong".
Harder QTE's: All the action scenes this season are SO badass but they're SO much easier than season 1's, shouldn't playing as a little girl make it a little more difficult?
Longer episodes wouldn't hurt also. Comment what you'd like to see the next to episodes down below!