The continuing search for what will happen in the movie that doesn't come out for two years continues and a casting notice for extras on The Avengers: Age of Ultron (aka The Avengers 2) posted at Feature Film Casting (via MTV) details some specific plot details that some of you not interested in spoilers may want to avoid:
In The Avengers: Age of Ultron Loki is gone and the new villain will be the evil robot Ultron, who has the ability to keep upgrading his own strength, making him extremely fearsome. Tony Stark/Iron Man becomes the unwitting creator of Ultron. The brother-and-sister team of Quicksilver and the Scarlet Witch become the seventh and eighth members of The Avengers. Quicksilver has extreme speed, while Scarlet Witch can cast spells and has telekinesis ability. Black Widow and Hawkeye will be key figures in the film.
Director Joss Whedon has already eliminated involvement of Hank Pym, the Marvel character also known as Ant-Man who created Ultron, so this woujld seem to jibe with that news as he said, "We're doing our own version of the origin story of Ultron."
The Avengers: Age of Ultron hits theaters on May 1, 2015.