I'll be honest. I don't think any DC movie director has the patience right now to commit to covering the 10+ in-movie-universe years required to successfully adapt and portray the batfam. Like it's just not happening. We are not getting all the batkids introduced in a liveaction dc movieverse in a way that follows a character-accurate timeline.
By which I mean they can't have Dick start Robin older than age 13 (because rebooted comics making him a teenager is heretical and I refuse to stand for it) but they also cant introduce Damian until Dick is in his early twenties (because their relationship depends on it I don't make the rules) and they also need to give Jason enough screentime as Robin to make his death count (in a way that doesn't assassinate his original goddamn character as Robin) but they also need to have him be dead for long enough that it mimics how impactful his actual death was during the comic run (he was dead for 20 irl years and it SHOWS) and Babs needs to be Batgirl for at least as long as Dick is Robin but she needs to be Oracle by the time Stephanie and Cass and Tim are introduced and Cass needs to have 1-2 years where she's Batgirl but not Bruce's daughter just like Tim needs to have 2-3 years where he's Robin but not Bruce's son–
I could go on, but tldr; the Battinson universe should just bite the bullet and have a multiverse plotline in the very last movie. Where Battinson visits a universe where he has 4-12 kids all protecting Gotham together and then he goes back to his universe and adopts a recently orphaned acrobat and that's the end of the Battinson universe movies. Yeah that's basically the only hope I have for batfam in a major dc universe live action movie.