Fox has several other “secret” projects in development, including a Silver Surfer stand-alone feature that is being written by comics creator Brian K. Vaughn.
(Yes, that was a Silver Surfer joke.
The Silver Surfer was one of the few bright spots of the second Fantastic Four movie from the first Fantastic Four franchise, is involved, the sky really is the limit.
THR’s report also mentions a standalone Doctor Doom film from Legion’s Noah Hawley that was already announced last year is still moving forward at Fox as well.