Several days ago The Amazing Spider-Man 2 co-writer Roberto Orci told IGN that he will not be returning to write The Amazing Spider-Man 3 (After publicly confirming his split from longtime co-writer Alex Kutzman) and even going onto say he doesn't know where the franchise is headed:
“I don’t know what their plans are for that franchise. I don’t ever want to say never, but we have to figure out what their scheduling is in terms of when they want each movie. I’ve read probably as much as anyone else. There’s a love for the Sinister Six, the idea of Venom — there’s an idea Spider-Man’s going to be one of these characters that’s part of our business. He’s such a popular character. Spider-Man’s not going to go away any time soon. When it all happens and how and all that has yet to be determined.”Now while everything is "yet to be determined" remember that The Sinister Six attached director Drew Goddard recently stepped down as showrunner of Marvel's Daredevil to exclusively work on The Sinister Six. Now while this isn't confirmed it seems entirely possible that Sony will move Sinister Six release date ahead of The Amazing Spider-Man 3. This all coming off of the rumor Ain't It Cool News heard that Spidey 3 won't happen before 2017