There has been a lot of talk about the upcoming release of Teen Titans #20, which has been pushed back until July 20th, if it will feature the first appearance of Crush, who is Lobo’s daughter. There is rumor’s she could appear elsewhere first.
I can confirm that she does make an appearance in Batman #48.
Granted, it is a preview for the aforementioned Teen Titans #20, and does run through all the DC releases out today. But as people have been clamoring for her to appear, this would be a first preview appearance.