the teaser trailer
This is relevant for the Toobworld Dynamic because the movies have been absorbed into the TV Universe, thanks to the appearances of Doc Brown and Marty McFly in TV commercials and a TV series.
"Doc Brown Saves the World" will once again star Christopher Lloyd as Emmett Brown. In the story, Doc Brown embarks on a mission to save the world from a nuclear holocaust in 2045 by preventing certain technologies like the hoverboard and Mr. Fusion from being created.
I'm assuming he'll also make sure that the movie "Jaws 19" and flying cars won't come to pass either. (Pepsi did bring out a limited edition of Pepsi Perfect for the anniversary and Nike will have the self-tying sneakers available by next year. Maybe Doc Brown's actions will cause that delay.)
Once the short film makes its debut, those discrepancies between the Cineverse and the real world will be reconciled.