X-Men: Days of Future Past ending explained (spoilers)

[scarlett]

Magneto impales Wolverine with metal rods and throws him into the Potomac. Mystique shoots Magneto in the throat and points the gun at Trask, but Xavier persuades her not to kill him. Mystique and Magneto escape. Because Mystique didn't kill Trask, the Sentinel program is shut down and Wolverine wakes up in a peaceful future where Jean, Scott and others are still alive and living happily at the X-Mansion. Back in the past, Wolverine is fished out of the water by police and they hand him over to William Stryker, who turns out to be Mystique….

[Michaelascet]

Mystique chooses not to assassinate Trask. The world news programs show her saving President Nixon from Magneto by impersonating him and shooting Magneto with a plastic gun. Since the world sees a mutant saving the President, the Sentinel program is indefinitely shut down.

Later, Mystique is shown impersonating William Stryker as Wolverines body is being recovered.

Wolverines consciousness wakes up in a new future where most of the X-Men, including Jean and Scott, are still alive. Professor Xavier tells Logan it is time they talked about everything that had happened.

After the credits, Egyptians are shown worshiping En Sabah Nur (the Apocalypse) as he psychicly constructs the pyramids effortlessly, with four horsemen watching.

[harry]

Arnies character turns into Satan but realises this and kills himself for the sake of Christine.