According to showrunner Wellesley Wild and co-executive producer Gabe Swarr, producer Steven Spielberg was at every pitch meeting and insisted maintaining most of the elements of the original show including the original voice cast.
Neither original series creator Tom Ruegger nor any of the original series writers return (with the exception of Randy Rogel). It is disputed whether or not Warner Bros. consulted them for this revival.
A clip, introduced as the cold open from the first episode of the revived show, was released during the Animaniacs panel at the 2020 New York Comic Con, parodying producer Steven Spielberg's own Jurassic Park with a caricature of Spielberg in the role of John Hammond having "reanimated" the Warners.
Thaddeus Plotz has retired and has been replaced by a new, female CEO named Nora Rita Norita.