Re: X-MEN: Days Of Future Past (Casting, Rumors, Pics till release)
Fox has the rights to "Fantastic Four" and "X-Men" as long they continue to develop them into feature films, yes. Same thing with Sony Pictures and "Spider-Man". Neither of them will relinquish or sell off these rights as long as they're making truck loads of cash with them.
Also Marvel wasn't "stupid" about anything...they were in bankruptcy and needed the cash and these character rights were very valuable assets.
Chief of Operations
Ignoring the The Last Stand since 2011.