THEORIES: Been wanting to touch on a couple of things regarding The Flash’s 100 ep.: 1. When Eobard Thawne called Nora➡️ Dawn. And 2. The big reveal that Nora is actually in league with Thawne.
1. My theory for the “Dawn” name drop is that in the original timeline Thawne comes from, Barry and Iris daughter was originally named Dawn, but her name became Nora after the changes dealt to the timeline. Kinda like how Diggle and Lyla’s baby’s name/gender was changed after Flashpoint. The retort of “at least you still have one” that Thawne said to Barry was just another chance to taunt Barry in my opinion.
2. Nora’s connection to Thawne opens up a door full of possibilities, but on Nora’s end I believe her intentions are pure. I don’t think Nora’s evil at all or at least not intentionally doing something evil. She knows that her dad disappears after a battle involving Thawne and not being close to her mother/feeling betrayed by Iris, Nora turns to Thawne in order to get answers. To figure out what happened to Barry and how to stop his disappearance. Of course this doesn’t mean Thawne isn’t misguiding Nora in her actions in order to fulfill his own agenda.