Topic / Subject
A rumor account claims Warner Bros. may be developing a Scooby-Doo 3 live-action legacy sequel with the original 2000s cast, but no major trade has confirmed it.

TL;DR
This is nostalgia bait with zero trade verification. The only confirmed Scooby project in the intake is Netflix’s separate live-action series, not a WB feature sequel.

Key Details

• A Threads post from a rumor account claims a Scooby-Doo 3 legacy sequel could reunite the original 2000s cast.
• Netflix has officially announced a separate live-action Scooby-Doo series project (not a feature film sequel).
• Variety has covered the Netflix series order/announcement.
• No major trade reporting is cited confirming a Scooby-Doo 3 feature with the original cast.

Breakdown
The reason this rumor works is simple: the cast is beloved, the era is peak nostalgia, and “one last case” is the easiest legacy-sequel pitch in Hollywood.

But right now, it’s still just a social post claiming “WB might be developing” it. That’s not nothing, but it’s not enough to treat as real development without trade confirmation.

It also gets messy because Scooby already has a separate live-action project in the pipeline — Netflix’s series. People see “Scooby live-action” headlines and assume it’s all connected. The intake is clear: the Netflix series is official; this Scooby-Doo 3 feature sequel rumor is not confirmed by major trades.

So the correct lane is: fun to imagine, but unverified.

What We Know

• Netflix has officially announced a live-action Scooby-Doo series (separate project).
• A rumor account is claiming WB may be exploring a Scooby-Doo 3 legacy sequel.

What We Don’t Know

• Whether Warner Bros. is actually developing a feature sequel at all.
• Whether any original cast members have been contacted or attached.
• Any writer/director/producer package that would make this “real” beyond vibes.

What Would Confirm It

• Variety/Deadline/THR reporting on a feature project with named attachments.
• Studio confirmation or a legitimate production listing tied to a film (not a series).
• Casting confirmations from reputable outlets or representatives.

Production Reality Check

• Legacy sequels usually surface in the trades once there’s a writer or producer package, because the IP is recognizable and attachable. The absence of that is a tell.

Verdict Box
Likelihood: Low
Why: It’s sourced to a social rumor post with no trade confirmation, and there’s an official Scooby live-action project elsewhere that can confuse the signal.

What to Watch Next

• Any trade report that separates “Netflix series” news from “WB feature” news.
• Real attachments: writer, director, producers, cast negotiations.
• Whether the rumor disappears once the Netflix series dominates the Scooby conversation.

Sources
Threads — SmallScreenCo rumor post (headline not provided)
Netflix Tudum — Scooby-Doo live-action series announcement (headline may vary)
Variety — Netflix live-action Scooby-Doo series ordered (headline may vary)

Comment
If a Scooby-Doo 3 legacy sequel ever happens, who’s the one original cast member you need back for it to count?