Re: 5 things you want to see
I want to see them Off Duty. Since they've gotten over the ego mania and become friends, show them as a unit not because they have to (saving the world) be but because they want to be.
Saying Avengers Assemble would be nice fanservice bu in no way could be pulled off without being campy and goofy.
Magneto: Does it ever wake you in the middle of the night? The feeling that one day they will pass that foolish law or one just like it, and come for you? And your children?
Professor Xavier: It does, indeed.
Magneto: What do you do, when you wake up to that?
Professor Xavier: I feel a great swell of pity for the poor fool who comes to that school... looking for trouble.