Nora (Dawn) Allen is that you?
Remember in 4.01 when Barry is rambling and he says “Nora shouldn’t be here”? Does he mean Dawn (aka Nora) his daughter (I think he did)? Obviously I don’t think she’ll be “revealed” in the crossover, most likely just an Easter egg, but it’s possible we might see her again later in the season! I’m excited!!! Where’s your brother, Dawn?!