I would love to see a founders movie or tv show, I think it would be amazing! I would also love to see a Weasley spin off, before they all met Harry!

A founders spin-off movie would be great, not so sure about tv show though. Not because it would be bad. I just don't like 6-8 episodes per season model for shows. I would also love a Marauders sitcom where we see them growing up. That way, things like Peter's betrayal would be even more impactful.

I would love a Founders movie! Though we do know a bit of their origin and life, more details would be wonderful! However, given that I'm a HUGE fan of crime/forensic dramas, it would be super exciting to have a show focused on Aurors and cases that they have to work on

I've been on board for a spin-off about the Founders. Though I personally would love to see it as a TV series because there is quite a bit that could be covered. It would certainly allow more room to explore their individual backgrounds, how they came together and built the school, showcase what it was like at the school in the early years, and also include other moments we are familiar with (disputes about who should be allowed at the school, the creation of the Chamber of Secrets, the whole Helena and Baron thing, etc).

A Law and Order or CSI type of show that follows Auror cases would be neat to see as well. I've seen great pitches for a series that has Harry in charge, but I would absolutely love to see the focus shift to a character like Moody. I can see a Moody-focused show being pretty action-packed with some interesting themes. Even a Tonks-centric show set in her early Auror days could be a nice balance of action and comedy.

Something I've been mulling over lately is Newt Scamander. Yes, we had the Fantastic Beast movies, but those weren't entirely focused on Newt and the story wound up being what it is. I'd love to see a series that focuses solely on Newt rescuing magical creatures around the globe and educating people about them—definitely giving off those Steve Irwin vibes. It'd be a great way to see different parts of the wizarding world while also learning about all of the magical creatures.

I'd also love to see movies or shows that highlight some of the other characters mentioned in the books that we know very little about, such as Herpo the Foul, Wendelin the Weird, and Uric the Oddball.

Petunia and Lily. Petunia's "I lost a sister" suggests a lot going on in that backstory.

I'd love to see Voldermort origins, Those chapters on HBP where we saw glimpse of Voldy's past were really awesome. Also, I'd love to see The first Wizarding war against Voldemort.

Oh, this would be fascinating, especially if from Petunia's point of view! "The Prince's Tale" in Deathly Hallows did give us a little glimpse into Petunia and Lily's childhood (from Snape's perspective). It certainly would be interesting to see more of their sibling dynamic and how their relationship changed before and after Lily discovered she was a witch. I could see this being effective as a mini-series that highlights moments over the years of Petunia's life.

I would be interested to see more of Tom Riddle during his years at Hogwarts. In a way, it could give off vibes similar to Coriolanus Snow from The Ballad of Songbirds and Snakes. It would be interesting to see Tom use his cunning to impress and gain the favour of others, face his conflict with his heritage/ancestry, discover the Chamber of Secrets, and eventually transform into Lord Voldemort beyond what we see in the books/films.