Plans for a film based on the series began in 2001, when Nickelodeon and Paramount Pictures began approaching Stephen Hillenburg for a theatrical feature. He initially refused their offers, but began developing it in 2002 upon completion of the show's third season. The first movie was theatrically released in the United States on November 19, 2004 to critical and commercial success. It was originally planned to act as the series finale, but the franchise's success led to the production of more episodes. A stand-alone sequel followed in 2015 and a third film is scheduled for release on July 22, 2020.

Based on this passage, when is the next spongebob movie coming out? Let's give stream of consciousness first:
The relevant sentence in the passage is: A stand-alone sequel followed in 2015 and a third film is scheduled for release on July 22, 2020.
So, the final answer is July 22 , 2020.