I think that whole "Dick Grayson needs to get out of Bruce's shadow" thing has already been proven. I mean, they can drag that out more...but Nightwing is already the established champion of Bloodhaven. He leads a new rendition of Bruce's old team. I think Nightwing's character now, is more about rising to be Bruce's equal/heir, rather than being some kid who feels like he needs to carve his own niche. Been there, done that...or have you not read any of Marv Wolfmans old Teen Titan books (which anybody can do, thanks to graphic novelization of most older Titan books)? Of course Droogie, that is just my opinion...but I don't think there is a problem with the whole Bat Family idea. It isn't like they frequently interact in every Batman story told.