This is starting like it could possibly be a "dream project" of sorts...think about it, we see a married Reed and Sue, possibly Sue becomes pregnant, we see Ben and Johnny are still bickering back and forth, Ben is still with Alicia, Johnny has either met a girl (Frankie?) or is still hopping from girl to girl. Then, we switch scenes from the Big Apple, the city that never sleeps, to a small European nation, with a castle in the background, and its monarch looking down to his citzenry. It is then, we learn that Dr. Doom is alive and well and has been tracking an incredible source of power, deep in space, and it is approaching Earth at rapid speed. With his sophisticated machinery, Doom lures what turns out to be the Silver Surfer to his castle. Of course, Reed knows about this power too and is worried about where it landed...Latveria. The F4 take off in their Fantasticar and arrive in Doomstadt, where it is too late, the Surfer's power is in possession of Doctor Doom, now a mega-powerhouse as he begins his conquest of Earth...after a fierce battle, Doom is defeated, and the Surfer warns the F4 that his master is approaching Earth...Galactus. The final shot we see is Galactus's spehere heading into Earth's atmosphere.
This is the F4 film I would love to see and maybe just maybe, we might get some of this after all....