Since
Oscorp Tower almost made it into the New York City skyline in
The Avengers, it's not entirely farfetched that
Spider-Man could make it into the Avengers lineup one day. The amount of horse-trading (
so to speak) that it would take for that to happen, however, would have to be quite serious and quite substantial.
maybe they wanted to see the Wolverine rather than Spider Man??
Hugh Jackman, for his part, said in an interview with
Collider in July 2013 that he really wants
Wolverine and Spider-Man to join
Captain America,
Iron Man,
The Hulk,
Thor,
Nick Fury,
Black Widow, and
Hawkeye in a future film project. The way he sees it, the potentially astronomical payoff from such a movie would far outweigh whatever it would cost to get it done.