After Robert Downey Jr.s impactful sacrifice as Iron Man Tony Stark in Avengers: Endgame and Chris Evans passing of the Captain America mantle, the Marvel Cinematic Universe MCU is set to encounter even greater and more formidable challenges. Earths Mightiest Heroes now stand on the brink of the unknown as they embark on the Multiverse Saga. Related: Disney Loses Another ‘Avengers Icon:...