Board Thread:General Discussion/@comment-34924658-20171024194401/@comment-25375217-20171024201437

Let's put it this way because I think everyone is talking about different things:

Anastasia is very likely to be a Cinderella's stepsister. It is possible she is from a different realm or maybe even the same realm like how Briar Rose and Aurora were both Sleeping Beauty, but the implication is definitely that she is somehow involved in a story similar to Cinderella's.

However, she is definitely not Ashleyrella or Jacinderella's stepsister. The former has Clorinda while the latter has a new Anastasia and the timeline does not line up for either. Furthermore, both Lady Tremaines are played by actresses who look nothing like Anastasia's mother.