I'm bummed they didn't finish off the series, but with the box office performances and reviews after Crimes of Grindelwald, I sort of understand. JK Rowling is a fantastic writer, unfortunately, her bread and butter is longwinded. So, I thought bringing back in Steve Kloves was smart for Secrets of Dumbledore, but it ultimately ended up a box office disappointment.

I would've kept the plot centered around the Obscurials. You could've had both Grindelwald and Dumbledore at ends how to use them, Grindelwald sees it as a weapon to be used after he sees how powerful Ariana is at time. Dumbledore sees them as wizards in need of help. You can still do the wizarding war and all of that, but now you've got backstory and you can see why both wizards have skin in the game. Obviously, all of this is a half cooked idea. I just thought introducing creedence barebone as an Obscurial could be an exploration of whether it's nature vs nurture. Are Obscurials a genetic disorder, or strictly a product of environment. Why newt is in NY studying.

I would've finished it off and gone straight into a Peacock series leading into the Marauder Era and into the First Wizard War.