With something like the Ultimates, I would say that sounds like a good idea, however, the Fantastic Four is a different animal. Excuse me for being argumentative (Really, it's creating a productive discussion so I'm not really at fault), but when things are as obscure as fighting off a diseased alteration of the team and then immediately jumping into a story where a thought-to-be-dead relative introduces the team to Atlantis is just wrong. Sure, these ideas are really great, classic in fact, but to run them together is just sloppy in my opinion.