Re: Changing the roster for Avengers 2?
None of these characters were well known before the movies, except for the Hulk. The movies have made them well-known.
It's beyond silly to argue that they shouldn't add characters who "aren't well known". They have no more well known characters in their stable. More characters will become well known by virtue of being used in the movies.
And Spider-Man won't be in the Avengers sequel, no matter how many times you come into this thread and post about it.