But It would be awesome if you did one with all of Batman's kids like Stephane and Cassandra and Dick and Jason and Tim and Damian and Terry and Barbra. I think that's all of them. I don't know Batman has a lot of kids O.o
Of all the families, you'd Batman's would be a little bit more developed than the rest. Even if you cut out his dead son and the two removed from continuity Batgirls, you still have two former Robins, a Batwoman and Batcow (true story).