Overview

• Robert Downey Jr. will portray Doctor Doom in the upcoming Avengers: Doomsday and Secret Wars.
• The casting decision has sparked mixed reactions among fans, concerned about Iron Man's legacy.
• Marvel faces the challenge of establishing Doctor Doom as a formidable threat quickly.
• The introduction of Doctor Doom follows the uncertain future of Kang the Conqueror in the MCU.
• Early fan art and reactions show excitement and skepticism about Downey's new role.