Since Tom Brevoort already spoiled the ending to Avengers Vs. X-Men #12 on Twitter, I thought I would give you a few more details.
Avengers Vs. X-Men #12 spoilers follow the rose.
Wanda and Hope punch Cyclops, and then the Phoenix enters Hope.
They hold hands and say, "No more Phoenix!"
Then the Phoenix is gone.
Then people with latent mutant powers all around the world start to get mutant powers.
Cyclops is in jail and the rest of the Phoenix Five are outlaws as well as Magneto.
Captain America makes a comment on how he shouldn't have let the world hate the mutants for all these years.
With that, he looks at a set of pictures of various mutants to decide which Avengers team to put them on.