I like the implication that Mystery Inc is in the same universe superheroes yet every single case they investigate someone is faking the supernatural.

Batman has fought demons and gods. He has been to hell. But some days are slow days and he investigates real estate fraud.

I wonder who will voice Batman in his episode. In The New Scooby-Doo Movies episode it was Adam West since he was the best known Batman at the time, and sadly since West has passed away it obviously won't be him in this show. My guess is either Kevin Conroy (Batman:TAS and many other animated series) or Diedrich Bader (Batman: The Brave and the Bold and the upcoming Harley Quinn cartoon series).