Debunked: Ultron will hijack the Hulkbuster armor to fight the Hulk
While this may sound cool, Ultron really wouldn’t look that threatening if he had to steal one of Stark’s (ridiculously oversized and overpowered) Iron Man suits to fight the Hulk.
This doesn’t mean we won’t get the Hulkbuster armor, of course. The shot of the Hulkbuster suit clashing with the Hulk was one of the first things we got to see in relation to Age of Ultron. Given that a large focus of the movie will be the Avengers attempting to maintain the team unity that helped them win the Battle of New York against Loki, the most likely scenario is that it’s simply Tony in the Hulkbuster armor, trying to stop the Hulk from going completely postal.
Debunked: Captain America is dead; S.H.I.E.L.D. is really HYDRA
Simply put; this isn’t happening. For starters, Chris Evans is all over the movie, in most of the shots and all of the trailers that we’ve seen.
This actually stems from a theory drawn up by those scoundrels at Moviepilot. The synopsis of the proposed theory, taken from the Marvel Movie’s wiki database, is below:
Several years after the supposed death of Captain America, Hank Pym and Howard Stark begin constructing new mechanical soldiers for the United States Army. However, due to expenses the operation is canned and locked away. Fast forward to modern day, where S.H.I.E.L.D. has now shown itself to secretly be Hydra. Baron von Strucker, who we see in the mid-credit scene of Captain America, has his hands on many SHIELD crates that were unused or stolen. While looking through the crates von Strucker finds what looks like a 1950’s version of Iron Man. Using stolen S.H.I.E.L.D. and Stark Industries technology Von Strucker upgrades the machine and powers it using the mind gem in Loki’s scepter (last seen in Strucker’s possession inthe mid-credits scene in The Winter Soldier). Finally, HYDRA upgrades Ultron with his infamous vibranium shell, which was in (SSR) S.H.I.E.L.D.’s possession since Captain America: The First Avenger.
It’s a cool theory, though.
Debunked: Spider-Man will appear in the post-credits scene
While it’s hard to accept, and no doubt many fans may not accept it until they’ve sat through and looked for it in case Joss Whedon was lying, it doesn’t look like there is going to be a post-credits scene period, let alone one featuring newly acquired MCU member Spider-Man.
According to an interview that Joss Whedon did with EW, there will be a scene of some sort during the credits but not the traditional Marvel post-credits teaser scene that fans have come to love and appreciate.