Director Marc Webb revealed last week that the announcement did come as a surprise, but in another interview, he spoke about how the fourth movie could include new heroes fighting alongside Peter Parker.
"Well, I think this was conceived of as a trilogy so there was a defined architecture to the story we were telling and we had sort of a rough outline of what was going to happen. I think [for] the fourth movie, what we've discovered is there are so many ancillary characters, that have enormous, cinematic potential that there may be other ways to exploit those characters, in a way that is exciting and fun and worthwhile. It might not just be a Spider-Man movie."
Perhaps the director is taking a cue from Warner Bros.' massive announcement that Man of Steel 2 will include both Superman and Batman. The filmmaker also teased the possible inclusion of the super villain group The Sinister Six, and if that story line does happen in The Amazing Spider-Man 3 or The Amazing Spider-Man 4, Andrew Garfield's Spider-Man will likely need all the help he can get.
What other superheroes would you like to see come into this Spider-Man franchise?
The Amazing Spider-Man 4 is in development .