I'm going to be honest, there is nothing I would change about the gameplay at all. Even for the minigames, there is nothing I would change about the gameplay. I don't know what you'd expect me to change about the layout, and I don't intend on adding any new Easter eggs either, except for a few small things.

EASTER EGGS:

I would have posters hinting at Circus Baby's Pizza World in random places during the minigames.

LORE:

For simplicity, I will be naming the Crying Child Evan Afton. Evan did indeed have nightmares, but they're not the same ones we see in FNAF 4's gameplay. He just imagines the animatronics breaking into his house and trying to eat him. Instead, FNAF 4 is in the perspective of Joseph who feels immense guilt for shoving his brother's head into Fredbear's mouth. His nightmares have haunted him every night ever since Evan died. During the cutscene where we actually see the bite happen, I'm going to reveal something new that happens. As the bite happens and the screen begins to fade, Fredbear can be seen turning purple and his eyes and teeth glow white. That's right. Evan Afton is Shadow Freddy. He's not a part of Golden Freddy. Because the Puppet wasn't there to tie his soul to an animatronic, he became a reflection of the thing he feared most. He was invisible to others for the most part, to those who didn't know where to look. He was more alone than the other souls in those restaurant. He never stopped crying and calling for help, for his big brother to find him. At least he was finally able to find peace in FNAF 3. The "HAPPIEST DAY" minigame was his birthday party. It was what should have been his happiest day, and after too long of a time alone, he was surrounded by people who made him smile.

Also, I'm not going to reveal what's in the box yet because lol!!!

Stay tuned for The Silver Eyes!