I don't think it's yet been mentioned around here, but Warner Bros. Discovery CEO David Zaslav said on
an investor call two weeks ago that "We’re going to focus on franchises... We haven’t done a
Harry Potter in 15 years."
Now, one could focus on the objective error of
Deathly Hallows Pt. II coming out only 11 years ago, but more immediately, that sounds like a pretty clear indication that he's not interested in humoring Rowling's
Beasts experiment any further. That said, unless they can rope Radcliffe and the others back in, which seems unlikely, I don't see how they could plausibly make more movies with Harry Potter the character. I don't think the fandom would stand for a new actor/cast, though I could be wrong. Nor do I think the general moviegoing public, already turned off by Rowling's up-her-own-rear labyrinthine plotting in
Beasts, would be much interested in a
Cursed Child adaptation specifically without the original cast at
least.
All in all, given that
Beasts has tainted the franchise's mythos, I think WB's best move would be to adapt the upcoming
Hogwarts Legacy game. The next movie should primarily take place at Hogwarts, because I'm not at all sure the franchise can ever thrive outside that setting, and going further back in time (say, to the 19th century) would be a good way to clean the slate. Start with new teenage characters, not children, don't do any more prequel table-setting, and for Pete's sake, bring some damned
color back to the visuals. (AFAIK, the franchise hasn't depicted a single sunny day since that
Hippogriff lesson back in Azkaban.)