Obviously, I have no knowledge, but really, who else could it be that would matter for across the entire Marvel line?
Not that I'm complaining -- I don't think Doom's profile has been too high of late, if it is, indeed, him
*Sniff, sniff* "Damn it, Diana...If I'd known they would trade us in for a JT Krul-written Captain Atom and "The Savage Hawkman," I'd have let Superboy-Prime destroy all reality.""Superman flies and is really strong...what the fuck else do you need to know?!"
-- Hitler, expressing his displeasure about DC rebooting and complaints about continuity