The Blu-ray and DVD for Avengers Age of Ultron will be released October 3, 2015 (in the following days). Even before hitting theatres, it was mentioned that the Blu-ray/DVD will have special features, including a different ending.
From the beginning, the fate of Quicksilver was not set in stone, as the director reported to Empire Podcast:
"We did actually shoot him in the last scene, in an outfit, with his sister. We also shot him, waking up, saying, ‘Ah, I didn't really die from these 47 bullet wounds!’ Actually, we shot something else with that, but… maybe I'll let you know about that later. But the intent was to earn this, and then you have to stand by it."
So, they shot some scenes with different scenarios, the ending from the DVD/Blu-ray is alternate and in one of the scenes Quicksilver is alive after 47 bullet wounds. Originally, this Marvel superhero didn’t die, not from the many bullets, at least.
Hard to believe, but after surviving Ultron's rain of bullets, Quicksilver gets shot when Hawkeye is trying to save a young boy. Quicksilver sacrifices himself taking the bullets that were aimed at Hawkeye. His final words were: "You didn't see that coming," and we kind of didn't.
