J.K. Simmons, best known as the no-nonsense fast-talking Daily Bugle editor J. Jonah Jameson in the "Spider-Man" movies, talked to TV Guide recently about more sequels in the series and it seems quite possible.
About his involvement in the third film, he says "I probably had not as much to do as I did in the second one and maybe a little more than I had in the first one, but from what I saw the new bad-guy stuff is once again going to top its predecessor. Hopefully there are plenty of cards to play for [Parts] 4, 5, 6.... I'll do a Spider-Man for every two or three years for the next couple decades if they want. That'd be all right!"
Was there any talk of Spider-Man 4 on the set? "Yeah, it got mentioned. In fact, the last couple of days I shot was at the very end of the schedule -- we were doing some night-action scenes in New York -- and [director] Sam [Raimi] was talking about it. It's not a done deal because everybody's deals, including Sam Raimi's and all the actors', was for three pictures. But he's certainly open to doing more".