When is Scooby Doo 4 coming out?

There is no official announcement of a "Scooby-Doo 4" movie. While there have been many Scooby-Doo movies and TV shows over the years, there is currently no information about a fourth installment in any specific series.

It's possible that a new Scooby-Doo movie could be in development, but there are no concrete plans or release dates at this time.