All of that sounds a little... off. We'll see if the rumors are replicated by other sources.
If Robin joins the Bale era, it won't/shouldn't be for a long time.
We seen Babara Gordon, she was a young girl. And Nolan went out of his way to keep her from the lime light - helping us keep the thoughts of sidekicks out of our heads.
You gotta imagine Babs and Dick around the same age.