Barbara Gordon will rejoin the team in issue #4.
"Sure, Barbara Gordon (aka Batgirl) was reluctant at first," Birds of Prey writer Duane Swierczynski told The Source.
"She didn't necessarily want to be hanging out with a gang of outlaws... and she has serious doubts about at least one member of team [Poison Ivy].
"But to Batgirl, friendship trumps everything, and you'll see exactly how she finds her way to a permanent spot on the team in issues #4 and 5."
Prior to the relaunch, the paraplegic Gordon was a founding member on the title in her Oracle role.
Swierczynski also revealed that several members of the team are wanted criminals and teased the reason why the villainous Poison Ivy is working with the heroes.
Batgirl is currently starring in her own title from former Birds of Prey writer Gail Simone and artist Ardian Syaf.
Birds of Prey #4 will be illustrated by Jesus Saiz and will debut on December 21.