"Arc 4: Gem Journey" will have "True Colors" as the Season Finale and will either have Luz and a select few characters end up in the Boiling Isles or back on Earth with Anne and the Plantars. It ends up being the second choice, with Luz and Amara joining Anne and the Plantars as they're sent to Earth.
The reason "Fight at the Museum" was Adapted Out was because the author found another way for the Earth party to locate the Olms without the vase. He also skipped over it because he wasn't pleased with how Anne acted in said episode.
This post reveals a few things about the Farmers and the Lyft Driver:
Vincent and Alyssa's children are witch versions of Sprig and Polly's human counterparts, Twig and Molly. Hop Pop's counterpart is named Obadiah, and none of those three will appear unless the author writes the sequel story.
"Twig" is a nickname granted for his status in the Plant track, and his real name is very embarrassing (also undecided.)
Molly is a nicer opposite of Polly but has a short temper.
The Lyft Driver is the writer of the Cynthia Coven/Azura crossover fic seen in "Two Worlds, Two Families".
one set during "Dinner and a Show" featuring a dance between Luz and Anne following the Battle of the Bands by Cartoonking1;
"Premonition" by Thomas Holmes II, which takes place after "Olivia, Yunan, and Lilly", showing Luz, Amara, Anne, Sasha, and Lilly all waking up after dreaming of Marcy and Amity's possessions by the Core.
The author revealed info that wasn’t clarified at the end of Chapter 54.
Vincent, Alyssa, and Raine did eventually get their shock collars removed at some point off-screen and their bile sacs will be fine. Alyssa healed them after they escaped but after a few weeks of healing, they'll be back to normal with no real adverse side effects.
Mire died in the battle. Grime knocked him out and he wasn't able to escape the blast when the toads retreated. So now only Bog is left from that trio of characters.
"Fight at the Museum" was Adapted Out was because the author found another way for the Earth party to locate the Olms without the vase. He also skipped over it because he wasn't pleased with how Anne acted in said episode.