There is that inbetween comic you could look up in the meanwhile, Songbird's Despair, drawn by an artist called Everfire
And as I've said many times before, FOW hasn't canceled anything they've announced, so it'll happen.
Yes. if you noticed, they pretty much set up the whole series in Harley's episode. You see Barbara preparing to become Batgirl again, Azrael brings Harley's bat to Poison Ivy, and Catwoman is seen investigating one of Professor Pyg's crime scenes.
As for the order, based on the progress in the old trello board it would be Catwoman, then Ivy, then Batgirl.