The call sheets not only list the actors and characters involved, but the settings with some specific details.
We see "Callsheet 66" actually lists that Vision kills Ultron.
At the bottom left of the following image underneath "... Woods, Near Fortress" is stated "ion kills Ultron."
That has to be read as Vision kills Ultron.
Now hopefully the scene isn't the finale of the movie, otherwise a pretty major spoiler has leaked.
Hopefully, it's just Vision killing an Ultron and not THE Ultron.
We also see Ultron Prime looks to be a part of the scene, but again, the description didn't read "Vision kills Ultron Prime," so hopefully the end of the film hasn't just been made known.
Other details in the images includes that Claudia Kim is playing Doctor Cho; there looks to be a new character named Zrinka, and Captain America seems to tell Tony Stark to watch his language.
Another interesting detail is that Pietro (Quicksilver) watches the Hulk transform and then sees a butterfly cocoon. I'm guessing it's not Adam Warlock, but an actual butterfly cocoon meant to symbolize the Hulk's transformation from Banner to Hulk.
"The Avengers: Age Of Ultron" hits May 1, 2015 directed by Joss Whedon starring Robert Downey Jr., Chris Evans, Chris Hemsworth, Scarlett Johansson, Mark Ruffalo, Jeremy Renner, Samuel L. Jackson, Elizabeth Olsen as Scarlet Witch, Aaron Taylor-Johnson as Quicksilver, Paul Bettany as Vision, with James Spader as Ultron.
When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and Earth’s Mightiest Heroes, including Iron Man, Captain America, Thor, The Incredible Hulk, Black Widow and Hawkeye, are put to the ultimate test as the fate of the planet hangs in the balance. As the villainous Ultron emerges, it is up to The Avengers to stop him from enacting his terrible plans, and soon uneasy alliances and unexpected action pave the way for an epic and unique global adventure.
The Avengers 2Trailer: