Re: Changing the roster for Avengers 2?
People said the same thing about The Avengers. They thought that the fan bases of Hulk, Thor, Captain America, and Iron Man were all too similar and it wouldn't benefit the box office intake by having them all in the same movie. Boy were they wrong. The Avengers ended up being the 3rd highest grossing movie, making way more money then any of the individual movies leading up to it. And it made that amount with much lesser known characters than Spider-man.
Spider-man is nearly the most famous superhero, next to Batman and perhaps Superman. If Spider-man was in an Avengers movie, the hype would be insane.
But obviously the circumstances are not ideal for this because TASM was a mediocre film, and Sony owns the rights to Spider-man currently. But I'm sure Joss could write Parker into the script and include him into the universe successfully, if given the chance.