In the days of superhero crossovers, it is not surprising when a studio does this. It is more surprising when they don't.
And that is what Fox is doing.
Or at least, they take place in different in parallel universes. According to producers Simon Kinberg and Hutch Parker, who spoke to New York Daily News, they would not be crossing over.
They exist in parallel universes. The Fantastic 4 live in a world without mutants. And the X-Men live in a world without the Fantastic 4.
Crossing them over would be challenging, but we sure would love to see all those actors together, the way we had them on stage at [San Diego] Comic Con.
The statement leaves the option open. But it makes it seem unlikely. Bryan Singer teased that they would just a few weeks ago. It seems things have changed.
I think it's weird that Fox wouldn't cross the two franchise if they were confident in the new Fantastic Four. But with terrible reviews (curremtly at 9% on Rotten Tomatoes) rolling in, Fox now might be a bit skittish.
Fantastic Four opens this week. It stars Miles Teller, Kate Mare, Michael B. Jordan, Jamie Bell, and Toby Kebel.