I'm not sure if this is truly Star Wars. Star Wars Family Tree - I really don’t know what’s going to happen in Episode VII, but if you’re not familiar with the expanded universe, this chart might come in handy to clear things up once it’s out.
I personally think she will most likely be a Kenobi or not related to any of the main characters we know. (I'm leaning towards the Kenobi theory though)>>>Well, if she’s not related to the Skywalkers now, she probably will be at the end of Episode IX.
Star Wars Family Tree: Intergalactic Who's Who In The Universe [Chart]