Tinker Bell 7

Tinker Bell 7 is the seventh movie in the Tinker Bell series

Development
Disney had plans for a seventh film. The Hollywood Reporter stated that the seventh film was cancelled due to story problems

Why It Was Cancelled

 * 1) The film had story-writing issues.
 * 2) Disneytoon Studios shut down in 2018.

Results

 * The film was permanently cancelled.

Resources
https://www.hollywoodreporter.com/news/how-tinker-bell-became-disneys-692559