In case you were looking for more confirmation about the Sinister Six in Marc Webb's Amazing Spider-Man movie franchise, Jamie Foxx recently talked to Total Film, and was asked if he'd like to return to the franchise as a part of the Sinister Six. This was his response,
"Yes, they actually talked about it, the Sinister Six. So, fingers crossed, because when you think about it, electricity never dies, it just goes to a different place."
I think it's a safe bet that the Sinister Six is going to play a role in these films. I'm just looking forward to seeing how they end up being portrayed in the films.
Channing Tatum is included in the same interview, and when asked what superhero he would want to play in a film, he chose X-Men's Gambit. You can watch Foxx and Tatum talk about it in the interview below.