Robert Downy Jr. is understandably drawing a lot of attention, thanks to his Marvel return as Dr. Doom. More importantly for this line of theorizing, Valeria is also the name of Franklin Richards' sister, whose name was given to her by Doom, her godfather. Valeria also crafts an armor for herself that combines elements of the Fantastic Four's costuming with Doctor Doom's metallic protection. SDCC was also the source of another big theory involving Doctor Doom, as the villain's hyper-detailed display statue was joined by a female counterpart of sorts identified only as "Latverian Witch." But I think it's more fun to believe that I unwittingly stumbled into a major Doomsday spoiler.