You mis-read it. AFTER CHAPTER 3, we will make a NEW STORY that has NOTHING TO DO with The Attic. So Chapter 3 is about The Attic, but our next story is not.
Change log:
Version 1.1
Map01 - Moved Lantern
Map02 - Fixed Level Transfer // Moved Secret Key
Map03 - Fixed Player Movement
Map04 - Moved Triggers // Added Sounds
Map05 - Added Key // Added Note // Fixed Overlapping Textures
Map06 - Fixed Door // More Detail
Map07 - No Change
Map08 - Added BIG Secret // Fixed Floating Decals // Improved Monsters
Map08a - Moved Triggers // More Detail
Map08b - Fixed Key // Moved Triggers // Moved Hatch Transfer
Map09 - Moved Start Point
Map10 - More Detail