Hell, I remember when I first joined this site and back in 2007, I was a movie surveyor and saw the first glimpse of New Goblin and Venom for "SM3" and everybody thought I was ********ting them until they saw the first footage and were like, "He was right!"
I'll say this, I don't mind rumors or spoilers, but I don't like stupid rumors ala Cher being Catwoman or Eddie Murphy as The Riddler. To me, 'Who is the real Norman Osborn? Is it Massee or Cooper?' is a form of a stupid rumor. And I don't think anyone is going to pull an "Iron Man 3" by having an actor supposedly be the main villain but in actuality is a pawn in a bigger villain's scheme again. Sure, "IM3" has made a lot of money, but it's also gotten its share of derision and backlash over having Ben Kingsley not be The Mandarin.
I also feel people are making a big deal of the number of villains thinking this is going to be a "SM3" catastrophe when there's plenty of other movies that had major and side villains that have been successful. And hey... "THOR: THE DARK WORLD" has Malekith, Loki, and Kurse for its villains. "X-MEN: DAYS OF FUTURE PAST" has the Brotherhood of Mutants, the Sentinels, and Trask. "CAPTAIN AMERICA: THE WINTER SOLDIER" has Winter Soldier, Alexander Pierce, Crossbones, Georges Batroc, Arnim Zola, and Agent Sitwell as its villains.
So, this whole idea of a movie having too many villainous faces is invalid. Now, unless Webb notoriously cuts the film to the point where a lot of character development is lost for these teased villain characters, the movie will suffer colossally, and the storyline and pacing will suffer as well. Again, this goes back to having the movie be close to 2 and a half hours. But of course people like Toomes, Betty Brant or Felicia Hardy, and MJ could be small little scenes 5-10 mins each.