Joss Whedon has stepped away from Batgirl. His official reasoning for departing the project is that he spent a year trying to come up with a story to match the badass character and just couldn't quite do it. I'm sure there's other things at play, like how he didn't quite fix Justice League enough to make it less of a flop and the overall chaotic state of everything behind the scenes at the DCEU, but that's the reason he gave to The Hollywood Reporter.
Man, DC just can't catch a break. It's getting real frustrating as a comic movie fan seeing them squander so much potential and I say this as someone who likes both Henry Cavill and Ben Affleck as Superman and Batman.
There's no reason there can't be amazing movies made out of these properties but the brass at Warner Bros seems less concerned about making good product than just making product period. Any and everything you got, throw it at that wall! Something will stick!
Whedon has shown a lot of talent at writing female characters, but maybe this cloud will have a silver lining and they'll actually bring in some, you know, females to write and/or direct these female characters? It certainly worked for Wonder Woman. Something tells me a talented female screenwriter might not have to spend a year trying to find a decent Barbara Gordon story.