I mean it's possible but at the moment I don't see writers listing these characters down and making a check list of the ones their killing within a year. Shouldn't deaths have more meaning than keeping numbers down? I know deaths are considered for certain things like Infinite Crisis but that's a larger scope story.
I might not like a huge bat family since some are ignored (anyone remember Bette Kane?) and the way others are handled. But I dunno, I can ignore most of it to focus on what I enjoy. It sucks when the characters you love are killed and even if I don't care/know all of the newer ones I'd feel for the ones that do.