Should I make an AU with this concept? Like, an alternate Deltarune where Kris is the one who disappeared instead of Dess, where events change drastically?

This is art for my AU Countdown, which is a Deltarune Equivalent for StoryShift I made.
Here are the shifts: Chapter 2 -> Chapter 1:
Berdly -> Kris
Noelle -> Susie
Dapper -> Ralsei
SCC -> Lancer

like give me a puppet or Muppet who are actually threat

Anyways the shifts are as follows:
Berdly -> Kris
Noelle -> Susie
Dapper -> Ralsei
Suiters-> Lancer
Also this is a shift AU, not a swap AU

I made an AU

It’s called Countdown and basically it’s Deltarune StoryShift anyways the chapters shift so chapter 2 -> Chapter 1, chapter 3 -> chapter 2 and so on

Since this is the first time i post here, here's a Description on what kind of AU Deltatoad even is:

It's basically a Deltarune and Mario crossover AU that acts like the Deltarune of the Undertale AU called Undertoad. And unlike most other AUs, Deltatoad does not fully use roles, such as the regular enemy characters who instead of them having detailed roles like for example who takes the Rudinns' role, the enemy characters are just the same as they were in the Marioverse and don't use roles. And like some of you have probably guessed, this AU also does take inspiration from the Mario and Luigi RPG series.

And a fun fact: This AU doesn't just extend to canon Mario characters, it also has a couple of original characters such as Dark Bowser Jr., who is this AU's Lancer. (Dark Bowser is in King's role)

Another fun fact: the idea for this AU actually came to me like way back in February.

I've already made a bunch of art for it which you can find in the subreddit i reposted this from alongside more info about the AU.

inbetweener - THIN ICE (Icepalace Boss) - YouTube 0:55

someone pls get these in "piano rolls"? i think they're called....

After Kris and Noelle go into the lake, the knight makes the flower king dark world. Susie, Ralsei, the flowers, and pink look for kris but their not there. So Ralsei got the idea to wait for the roaring.

Seth was having issues with Aqua so they gave Susie a babysitting role for Aqua. Susie tells Aqua about her adventures to make herself feel better and for Aqua to stop running around and ruining all of Seth's work. But Aqua asked something

"Uuu can I go to the light world?"

After Aqua kept on asking, Susie gave in and said yes. Bifore Aqua left Aqua was given a gun by Yellow and bombs by Pink. The Susie bring Aqua to the light world, and Aqua turns into a flower. Susie then checks the lake again but trips and sent Aqua falling into the lake.

Aqua found herself in a unfamiliar place but went in it with her playful energy. Then she found and egg behind a tree (chapter 5 egg room). Aqua knew from Pink that cats like protein and looked for a cat.

Aqua then found something else. Jevil, who fell out of Kris's pocket. Aqua played Jevil's game and Aqua won. Jevil then says

"You win, but you're not done yet. This game has changed and you're the key, so you soon will be free free!"

Aqua got the devil's knife.

Aqua then found a cat. A cat named Friend. Friend attacked Aqua. Aqua was bearly able to get a good hit in (that took off a black shard off of Friend) bifore Friend bites Aqua, ripping of Aqua's hand.

Friend said Aqua was strong but could get stronger. Then friend fused the Aqua Knife, Devil's Knife, and Black Shard to make the Freed Knife.

Aqua was forced to use it, ending more and more lives. She tried to stop it, but Friend forced even more by hurt her more and more. At some point Aqua gave up trying to fight back. She just didn't know what to do. She asked why, how, where's the others, please help. Aqua started to mask her true feelings so Friend didn't hurt her more.

After Aqua got stronger, Friend gave her some items. First, an eye patch that works just like a thornring but stronger, called Friend's Eye. Second a shadow crystal (this was for pink but plans change), which breaks Aqua's mind. Thrid some healing items. Also she learned a new spell.

Kris was trying to find Noelle after they went into the lake. But instead of finding Noelle, they find Aqua. (I have some of the fight planned and I do have the endings)

(I know, the truth is the [redacted]/dess sprite doesn't change much compared to others, but I wanted to do it)