Long story sorta short: Marvel wants ownership of all its characters again to make their own movies. Things are less acrimonious with Sony over Spider-Man, but they're close to declaring all out war with Fox over Fantastic Four and X-Men.

Looks like Marvel plans on cancelling Fantastic Four by April 2015, so there won't be any F4 comics on the shelves for the August film release. And apparently X-Men writers aren't allowed to create any new characters in the comics, since they automatically would become property of Fox for film purposes.

Of course, I highly doubt the F4 are dead in comic form; they'll be back by 2016 at the latest, and if Sony blinks, they won't be gone at all. But still, gotta love corporate greed.

Link to the story Onion AV Club story:

http://www.avclub.com/article/marvels-dealings-spider-man-x-men-and-fantastic-fo-210241?utm_source=Facebook&utm_medium=SocialMarketing&utm_campaign=LinkPreview:1:Default