CHAPTER 3:

Dustpiles returning

Spilling the subtext beans way too early. (Ralseis first big thing is explain lore talking about reality and stuff)

Misplaced rudinns? (Just like starrune shopkeep rudinns)

Old video games. The old console being an important part of the dark world.

Battle where you can only act (roulx card chapter 3)

Susie talking the boss down after a battle.

The main villain wants to create an everlasting world.

Ralsei being all like "Please forget and move on from fiction."

CHAPTER 3 SECRET BOSS:

Secret boss taking place after the regular final boss.

Both secret bosses are "destroyers of worlds" (roaring knight causes the roaring) (apani is a death deity thing.)

Fight only boss you can't beat but only harm that is like super deadly lol

Needing to beat a secret boss to obtain equipment that allows you to reach the secret boss.

CHAPTER 4:

Noelle ignores telling her mom to do stuff with Susie.

Minigame from third dark world appearing in Castle Town. (The arcade cabinet from starrune)

Ralsei having an empty Minimalistic room

Nubert cult talk? (Nubert is part of everyone, kinda like a god.)

Dark Library! OMG, the lost library predicted the church dark world.

Act only party member. (Old man chapter 4.) (Noelle in cinnamon clouds)

Susie having a mentor (apani did teach bee buster)

There being more combat required fights

Susie creating a dark world 

Final Boss fight against a giant.

CHAPTER 4 SECRET BOSS:

Difficult Susie only boss for a hammer 

Axe that heals

The secret boss is the mentor.

Green Soul.

CHAPTER 4 SECRET GIMMICK BOSS:

Castle town having an exclusive boss fight.

Allowing the player to return to castle town from inside the dark world.

THOUGHTS:
Chapter 3 could easily be explained with "Um since Susie created the Dark World of course her version would not feature the TV lmao."

Chapter 4 is actually much more on the mark lol, a dark library, a mentor figure for Susie and a dark world created by Susie. I guess this game being a Chapter 4 AU at first now has its pay-off.

Although I did get Susie being like "An eternal world is bad actually" wrong.

FUTURE:
This actually kinda motivated me to look into creating Starrune V.3. Basically healing magic is way too strong. And I could patch up other things and maybe even include some chapter 3 and 4 stuff. Like I won't try to make it canon, but the thing with healing magic kinda annoys me for years now and if I release a new version, I might as well fix and add some stuff.

Maybe once the chapter 3 and 4 libraries get released for the engine Starrune is made for.

Before you all ask, I can imagine the Green Room being located in an expanded version of the area where you fight spidra (the spider from Deoxynn) in Starrune. There being an elevator which leads to the Green Room. Basically since the console is in the drawer you travel through the back to on top of the drawer.

I always imagined Mirati as a theatre kid, this could be a nice place to let that out. Maybe if you go there before the Cinnamon Clouds she can be a boss there. Like you are asked to tape several things and the final is either an original boss if you do it after Cinnamon Clouds or Mirati in disguise if you do it before.

"We produced four pieces of new television..."

"With ad breaks, reruns and of course the whather channel..."

"That should last us all season!"

So basically, maybe I'll add in an optional arc to Starrune.

Or maybe not, maybe writing is out is enough.

Guess we will see!

PS: I am currently working on a Deltarune project, just wait and see!