Originally Posted by
Killerbee911
Yes Doom and Namor began as FF anatoginist but over years in a share universe they have become Black Panther antagonist as well. Over last couple years Namor has become one of the biggest BP villains. FF has wealth of villains like Annihilus, Super Skrull, Mole Man , Galactus, Molecule Man, Kang ,The Wizard ,etc which they can lean on and should lean on, FF failure has been nobody seems to have plan beyond their origins and similar approach to what MCU is doing with Spiderman is need where they using other villains than expected ones . Depending on Marvel approach in bring FF and fox characters to the MCU will depend on how use able Doom or Namor could be for other properties. If after the Avengers 4, They are grandfathered into universe then Doom and Namor are fair game. If they introducing the characters as new history then yes all FF villains should show up in their movie first. That's how I see it