
Fantastic Four #700 by writer Ryan North, artist Iban Coello, colorist Jesus Aburtov, and letterer Joe Caramagna mainly focuses on Doctor Doom as he sends himself into a timeloop attempting to bring back the missing Baxter Building, which is currently displaced in time by one year.
Doom's story is a poetic tragedy befitting the unquestioned monarch of Latveria. But it's the last few pages of Fantastic Four #700 (which is also Fantastic Four #7, thanks to 'Legacy Numbering') that hide a particularly interesting new development for not just the Fantastic Four, but the entire Marvel Universe.