questions in FIVE NIGHTS AT GUMBALL'S: Drawing Edition - Official Community

Why wasn't Springed-bunny, and or Bunny-trap in FNAG 3 original, and Redraw. It would have been really cool if Springed-bunny had a unique mechanic that had something to do with the door in the storage room
just one more thing, when FNAG4:DE(REDRAW) will be released, im anxious for this game, a friend of mine joked that you was dead because you was not posting recently( i will definatly kill him for this one( im joking ) )
will FNAG4 explain who are the new killer, shadow gumball and monster gumball? Because, the killer of the 3 kids in FNAG2's pizzaria and the 6 in fnag1's can't be gumtrap and also, in FNAG3, it says he killed 7 in total and he died in springlock in 2011
What is the name of the song used for the FNAG 2 Drawing Edition Revamp V2 menu?