How would/does Harley deal with the evidence of there being alternate versions of her world and people she knows?

What's something you're really looking forward to doing with Cosette? Do you draw on other versions of Les Mis for her? Or strictly the Brick?

(Not a question but it occurs to me that Harley Q and Tris could be super interesting, given her work and also probable familiarity with TRAUMATIZED SOLDIERS)