Thoughts & predictions: [spoilers]
Johannes was in love with the former empress but couldn't be with her so when he saw Shuli, who looks exactly like her, he married her.
The Prince will become obsessed with Shuli, if he isnt already and become more manipulative and destructive.
Nora and Jeremy will become BFF's.
Nora's mom will pass and his dad will at some point ask Shuli for marriage which will be super awkward since Nora might also be falling in love with her? I hope not though. With the exception of the Prince, the kids all see her as a mom regardless of age.
The church orchestrated the attack in her past life.