Re: DC's New 52: Reviews and Discussion (Spoilers welcolme and likely)
Despite the name, I've never really thought of Batwoman as part of the Bat-family. She doesn't operate with them, doesn't know their identities, and doesn't take part in their crossovers. She's about as related to Batman as Spider-Woman is to Spider-Man.
In the article Didio also says that she's going to be a major part of the Bat-family going forward.
They say a little knowledge is a dangerous thing, but it is not one half so bad as a lot of ignorance. - Terry Pratchett, Equal Rites