A fan asked why Damian takes after Bruce rather than being portrayed as biracial and the editor promised to look into it. How the bat familys' diverse background has been written has been somewhat uneven in the past.
Kate Kane: Except for perhaps the last few arcs of her series Kate's sexuality and religious background have been written respectfully.
Bruce Wayne: To be fair the original plan wasn't to make Bruce and Kate cousins through his mothers' side. But it already has been revealed and since then nothing of his mothers' faith has been mentioned. While it's possible Bruce doesn't practice (some stories have had him give up all religion) it would be nice to see him respect the traditions even if it's only around the holidays.
Dick Grayson: Many don't know this but Dick is Romani. Or at least he has been since Devin Grayson wrote the character. While it's a nice addition Devin did tend to write stereotypes. Hopefully it will be written better since Dicks' second Secret Origins issue confirmed he's still Romani.
Cassandra Cain: It makes sense for Cass not to be too focus on her background since she grew up thinking she was "adopted" by David Cain. Later on she finds out he is indeed her birth father and searches for her mother. Unfortunately her Asian side is given negative attention when DC decided to turn her into a villain. We'll see how this is written in the relaunch.
Tim Drake: Originally Chuck Dixon wanted to reveal that Tim was Jewish. However this idea never saw print.
Jason Todd: There are some fan ideas based on what happened in comics and artwork. 1.) Jason is part Asian. This concept came from Death in the Family since the dymanic duo have no problem with Lady Shiva being a potential mother suspect. This led many to believe Jason at least looks Asian and the fact we never received 100% confirmation that Haywood was his birth mother. 2.) Jason is either part Hispanic or Native America. Both are based purely on interpretations of the artwork on his father Willis during RHATO #0.