Basically what is happening is re-vamp of the whole comic. Barbara Gordon is going to lose all her possessions in a fire. She then relocates outside Gotham and goes back to school, blah,blah...
They are going to change the tone of the comic because they think that since the New 52 reboot, the comic is too dark in story. So with this new storyline they will lighten things up. The costume is all about being a trendy 21 year old and the little girls will like it and it is good for cosplay!
Interview with new creative team...
http://www.comicbookresources.com/?page=article&id=54859
When the current story ends, that's me out as well.