http://io9.com/rumor-has-it-marvel-is-clawing-fantastic-four-back-from-1736693837
That "Marvel Taking Back Fantastic Four" Rumor Is False [UPDATED]
Update: Believable or not, we’re being told by our sources that this isn’t currently true. Whether or not that means Marvel will never get back the rights to Fantastic Four remains up in the air. But for now, it looks like everyone’s staying where they are.
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So for now FF is staying at Fox.