Fantastic Four 2 (2010s)

Fantastic Four 2 is a cancelled sequel to 2015's Fantastic Four and it was slated to be released by 20th Century Fox in the summer of 2017.

Plot
Unknown

Why It Was Cancelled

 * 1) It was cancelled due to the box office bomb of 2015's Fantastic Four.
 * 2) It was supposedly set up a proposed crossover with the X-Men film series.
 * 3) Its July 2017 slot was later taken by War for the Planet of the Apes.

Result
The film was permanently cancelled. However, there is a possible chance of a second reboot to the franchise; in December 2017, The Walt Disney Company agreed to a $52.4 billion dollar acquirement of 21st Century Fox and most of its assets, with Disney CEO Bob Iger announcing their intention to integrate the Fantastic Four into the Marvel Cinematic Universe.