Only at the end of Phase 6, when Marvel delivers the one-two-punch of Avengers ... The original MCU Avengers consisted of six heroes (Iron Man, Cap, Hulk, Thor, Black Widow and Hawkeye).

While Iron Man is behind Downey, he'll reprise his role as the Armored Avenger away from the MCU for Disneyland's "Stark Flight Lab" attraction. Talking about that at SXSW this past weekend ...

As this list shows, the ranks of Earth's Mightiest Heroes could really swell by the time Avengers: Doomsday rolls around. The ...