UPDATE: Joss Whedon Is Still On Board To Direct BATGIRL And Is Currently Working On The Script
Earlier today, a rumor did the rounds that claimed director Joss Whedon was no longer involved with the planned Batgirl movie from WB, but EW's sources have now confirmed that this is not the case....
Given the recent controversy surrounding Joss Whedon and the fact that the Justice League movie he worked on is underperforming, it wouldn't be too hard to believe if The Avengers director wound up parting ways with his planned Batgirl Movie. So, when a rumor broke earlier today claiming that this very thing had happened, it didn't seem too far fetched.
However, EW has now reached out to their sources and confirmed that Whedon is still very much involved with the project and is currently hard at work on the script.
Of course, this doesn't mean that situation can't or won't change at some point (the DCEU doesn't seem like the most stable of franchises, after all), but as of right now, Joss Whedon's Batgirl is still a thing.