Well, he kinda does, depending on how you choose to interpret what he said about the future of The Amazing Spider-Man franchise during a recent interview promoting White House Down. (Obviously, possible SPOILERS after this point!)
They actually talked about doing the Sinister Six, so, fingers crossed. Because electricity never dies, it just goes to a different place.
It’s probably pretty obvious that Spider-Man isn’t going to lose to Electro, and even though Foxx never outright says that’s the case, I think we can all agree Spidey is going to come out on top and somehow stop his supercharged foe. What’s even more interesting about this, though, is the mention of the Sinister Six. If the group of super villains were to form we would, most likely, see the return of Jamie Foxx as Electro, whether he’s defeated at the end of The Amazing Spider-Man 2 or not. If this does happen, it would be the first time the Sinister Six showed up on the big screen as a group, so that could be a major selling point for the third Amazing Spider-Man film.