Star Vs The Forces of Evil: The Time Crash

Star vs. the Forces of Evil: The Time Crash is an upcoming 2020 animated actiom adventure fantasy-comedy film based on the series Star Vs the Forces of Evil created by Daron Nefcy and produced by Walt Disney Pictures, Mercury Filmworks, Toon City, Rough Draft Studios and DHX Media and it was released by Walt Disney Studios Motion Pictures in 2017

Plot
While celebrating her final days on earth with Marco and her friends before she has to return to Mewni so that she can focus on her leadership skills. Star notices that the earth dimension is cracking and is suddenly dragged away by an unknown force which seperates her and Marco. Star discovers from Father Time that Ludo had somehow been able to travel back in time and successfully managed to steal the wand from Star during the events of Lobster Claws, Father Time was only able to save her from the timeline changes but the others are changed drastically due to the changes in the timeline and that she needs to restore the timeline as the very universe is breaking from the time shift. So it's up to Star to save the universe from Ludo

Cast
Eden Sher - Star Butterfly

Adam McArthur - Marco Diaz

Alan Tudyk - Ludo & King Butterfly

Grey Griffin - Queen Butterfly & Jackie Lynn Thomas

Artt Butler - Mr. Diaz

Nia Vardalos - Mrs. Diaz

Abby Elliott - Janna

Character Ideas (wiki contributors notes)
I'd like Star to have the same upbeat personality and passion for battling but for her to grow increasingly hateful of ludo and upset towards the devastation and how in the new timeline she is believed to have been killed by Ludo before she could get the wand.

I re-imagined Marco to be alot darker in the altered timeline and have his new persona be inspired by Hercules in the third God of War game. In this timeline Marco has become the general of Mewni's royal army and has become incredibly pessimistic towards everything and has become self loathing and blames himself for Stars "death" in the new timeline. Marco initially believed that Star was a monster spy or a clone abomination of Star created by Ludo to weaken him. After a lengthy battle with Star with him using an enchanted cestus created the royal blacksmith and Star using a wand against him. He reluctantly enlists her in the royal army but during the movie he soon realises who Star really is and admits some secrets to her and becomes her most powerful ally.

In the new timeline Ludo has gone completely insane due to his excessive use of the wand and has horrifically mutated himself to become the most powerful being on Mewni. His abusive traits towards the monsters has become so bad that they consider failing Ludo as a fate worse than death. Ludos secret as to how he change the timeline is known only by him and him alone and will take that secret to his grave.