I shall be bitchy below.
I love hate how you managed to get every tag wrong when you posted this. I don't mean to be mean, but it bothers me how it doesn't even seem like you're trying to get them right.
On a nicer note, I do really like her outfit in the preview clip. It's so purpley and awesome. I don't really see it as an outfit suited for Gotham City, but the Robin's costumes aren't, either, so what the hell. Let's have a pretty costume.