Now, before we start tackling what Warner Bros. should do, let's rule out the one thing they really, really want to do: a film adaptation of the stage play, "Harry Potter and the Cursed Child," which became the highest grossing Broadway production of 2018.
Co-written by J. K. Rowling, John Tiffany, and Jack Thorne, the new format takes a somewhat outlandish story (in an alternate timeline, Voldemort and Bellatrix Lestrange have a child), and infuses astonishing special effects with top-notch, emotional performances. The cherry on top is an unlikely friendship that actually drives the story home, featuring Harry and Ginny's son Albus, and Draco Malfoy's son Scorpius.
Would this legacy sequel work as well on the big screen? Eventually, probably. "Sorcerer's Stone" director Chris Columbus even noted to Variety that, "I would love to direct 'The Cursed Child.' It's a great play and the kids are actually the right age to play those roles. It's a small fantasy of mine."
But right now, if the Wizarding World dips back into the "Harry Potter" well in the wake of the "Fantastic Beasts" films falling on their face, it would spell doom for any hope of a wider cinematic universe. Besides that, Danielle Radcliffe isn't interested at this time, so debate on this is pointless. Simply enough, the timing isn't right for "The Cursed Child" to be adapted for the big screen.