May have been accidental, but during Mark Millar's recent arcs, there is one where The Invisible Woman, along with a lot of other super heroes from the year 25xx, goes back in time to bring their civilians into the old Earth. To do this, they have to use Galactus as a battery. The fight brings the number of living heroes from hundreds to six. The Invisible Woman remarks that her 'Husband and children died to get there.' It was strange when she didn't mention Johnny, who was standing right there. Then I realized that was because, since they were from the future, Johnny was already dead. It was foreshadowing his death a good twenty issues before the it ever happened.
Probably just a conicidence, since Johnny returned from the dead 12 issues after he died in the first place.
In an issue of Mark Waid and Mike Wierango's run, the Fantastic Four basically meet God — who turns out to be a comic book artist with an unseen collaborator who bears a striking resemblance to Jack Kirby. Which is not only a perfect tribute, but makes complete sense on a metaphysical level; who else would a comic book superhero view as God but the artist / writer who created them and the world they live in?
I always used to think Mister Fantastic was a dumb superhero name, mainly because it's so non-descriptive of his powers. Then it hit me; this comic came out in the era that gave us the expression "Plastic Fantastic". So, it's basically a somewhat subtle way of saying "Yeah, he's basically our answer to Plastic Man." —Cuchulainn
The uniforms the Four wear are modified from the clothes they wore under their spacesuits from the first movie. You can also see them wearing them under the standard uniform jumpsuits of the Doom space station. That's right kids, the Fantastic Four are literally fighting evil in long underwear.
Unlike the others who can activate their abilities at will, the Thing cannot switch his power off. This was because Ben Grimm was unshielded at the time of the accident and recieved a higher dosage of cosmic storm radiation, whereas the others had Reed's shielding partially mitigating the effects.
The is best exemplified by his failed attempts with his machine. As he steps out his body starts to go limp from losing control of his powers.
Throughout the first season of the 1990's Fantastic Four cartoon, one of the supporting characters was the Baxter Building's landlady who also lived there. Then in the second season's first episode the Baxter Building gets destroyed, and she's never seen again. Was she still inside during the destruction?
Before they go in to stop Doom, Johnny clearly states that the building had been cleared out.