Speaking of Rey’s parents, a while back I proposed the idea of removing the idea of Rey’s parents being good people who loved her and wanted to protect her - the retcon that her parents actually loved her undermines her arc in TLJ of moving on and learning to stop caring about her parents who threw their own daughter away like garbage, because in TRoS it turns out Rey stopped caring about her parents in TLJ all for nothing.
The idea consisted of removing hints, scenes and lines about Rey’s parents being good people who loved her, and at one point I came up with the idea of having it so her parents abandoned her because she is a Palpatine (combined with her Force-sensitivity).
REY: You said you knew the rest of my story. You knew why my parents threw me away. Why? Tell me.
KYLO REN: Because they knew what you would become. You don’t just have power, you have his power. You’re his granddaughter. You are a Palpatine.