Scooby-Doo! Back to Ghoul School (film)

'''Scooby-Doo! Back to Ghoul School''' is an upcoming film.

Coming soon in 2020's.

Synopsis
(Any ideas)

The school is back. The gang will (?)

Plot
(Any ideas)

Characters
(Any ideas)
 * (?) as Scooby
 * (?) as Shaggy
 * (?) as Velma
 * (?) as Fred
 * (?) as Daphne
 * (?) as