Re: Avengers a culmination of Marvel history (including 616/Ultimate/etc.)
Well MY guess is that even the Sif/Thor relationship is changing from the first Thor movie.
But yeah there should be some changes from the books and the movies, not to mention a combination from all the different time lines too.
Responsibility, Duty, Honor these are not
mere virtues to which we must aspire
they're Essential...to every soldier
....to every King.
Coulson, "If the details of this gets out, the operation would be complimized"