It's WB's point to get people talking by releasing this.
Let's not forget, however, as many have already stated :
- It's a "still". We don't know the how, the why, the when. Nothing. It may not even be from the film, but only a promo picture.
- She may have headgear at some point in the film. This still could be from a scene before that, or after (I can see her getting rid of it in the heat of the final battle)
- We don't know anything about how she will be named "Catwoman". She may not have gone for a cat motif while assembling the suit, but other people could have started calling her Catwoman because of OTHER things (her agility, her ability to see in total darkness...)
- At the end of the day, we don't know anything. That's a picture out of its context. Everybody's allowed to speculate, but there's no need to adopt condescending tones and call people names about their opinions.