Imagine if Gaster appeared at the beginning of chapter 6 as a silly and “good” character and revealed himself as a villain at the end?

I have a theory that chapter 6 will start lightly and with Gaster presenting himself as someone supposedly ''good'' and very playful, causing fans' expectations to be exceeded and their way of thinking about the game to change brutally , but not in a way in which they are disappointed but in a way in which they think ''Okay, this is kind of interesting'', and then in the last minutes of the chapter, Gaster reveals himself as a villain that everyone was waiting, and a possible bizarre realistic style battle begins like the fight against Omega Flowey, while a new version of Megalovania starts playing, and after the battle ends, the roaring is activated, the chapter ends, and continues in chapter 7. What do you think?