The ponies could become other "beings of the night", there are several other animals and mystical creatures who are nocturnal that the villain might like and so wouldn't miss the opportunity to transform the ponies into them so that her new world would be even more to her liking. It would also be a great opportunity to bring back the batponies, what can I say 😅
That is another fun idea. This is just a one-off thing I did for fun, but if it wasn't that definitely sounds like something that'd happen in a hypothetical final season.
The bully Gold Hoof and Misty should be sisters, as Opaline is like the evil step mother in cinderella feels like she is based on the evil Disney step mother villains even the dragon fire thing Maleficent could turn into a dragon . So do that for G6 Mistys life make her Cinderella
I appreciate your ideas and I'm glad this inspired you. But rewritten Opaline isn't based on the evil stepmother and rewritten Misty isn't based on Cinderella, nor are they linked in any ultra powerful ways to G5 like the dragon fire. They're just them and their own things for this fun one-off idea I brought to life. If this was a larger project it could possibly be a thing where someone's telling the Cinderella story and it being presented had those characters in those roles (or it was a rendition of it made by Sweetie Belle as a theatre-based camp challenge, though Opaline wouldn't be the evil stepmother in that play for obvious reasons). While the rewritten characters as presented here won't be changed due to it just being a fun one-off project, I like the ideas you came up with and I'm glad this inspired you.