There’s one crack theory about Lily that I don’t believe has popped up in this thread yet. I know people won’t be big fans of this theory, but it’s still an interesting theory to consider as a possibility. And with this show, I certainly wouldn’t put it past the writers to do this sort of plot twist. This theory is that Lily is Regina and Robin Hood’s daughter, who they lost via a time portal. A reason for this being that Lily’s actress looks somewhat like a younger version of Regina. Plus, the tattoo might be a nod to Robin Hood, as he too has an iconic tattoo of his own. Also, if this is true, then Regina will get to experience the same thing Snow and Charming went through with Emma. While I would personally be annoyed with yet more time traveling and family plot twists, at the same time I like the idea of Regina finally getting to put herself in the Charmings’ shoes. Perhaps Regina would even finally start regretting her past actions and move forward on her road to redemption.