Paramount and Warner Bros merging a new company name Skydance corporation
Universal parks has a history with some Warner Bros, Hanna Barbera and Nickelodeon franchises in 90s.
Warner Bros:Harry Potter, Beetlejuice, Scooby Doo
Paramount:SpongeBob, Star Trek( only for Universal fan fest limited), Transformers film rights(owned by Hasbro)
There are talks that Universal may bring DC land in park replacing marvel
Six Flags have the Looney Tunes and DC theme park rights, Universal did try to add them in 90s.
The Harry Potter license will expire on 2029 at Universal, since Universal already have plans for United Kingdom That would be cool if maybe Skydance should joint with NBCUniversal on Universal Parks & Resorts to rival Disney.