With the recent casting of Colm Feore in the Amazing Spider-man 2, I can't stop wondering who he's playing. The popular theory seems to be Norman Osborn, which makes sense but I've also seen suggestions that maybe he's going to play the Vulture or even J. Jonah Jameson. I just wanted to outline my thoughts and see what you guys had to said so here goes.
Let's start with Norman Osborn. This seems to be the general consensus but I'm not so sure and hope it's not true. Now with Dane Dehaan cast as Harry Osborn, it would make sense that Norman should show up in this film but I think the series could benefit from him remaining in the shadows for another installment. I hope to see the Green Goblin kill Gwen in the third movie but don't think the character needs to be a major focus this time. I do think however he should be the Big Bad behind the scenes pulling the strings so this very well could be the role Feore was cast for but the idea I have could point elsewhere.

I'll call this the Sinister Six theory and I know it sounds overly ambitious but if we can have six heroes share a film, why not six villains? A Sinister Six could be tied together in the film through Oscorp's various research technolgies. With Jamie Foxx as Electro and Paul Giamatti as Rhino, Colm Feore could join their ranks as the Vulture. This makes three but also what about the man in the shadows played by Michael Massee last movie? Some had speculated that he was Norman Osborn but it seemed as if he teleported in and out of Connor's cell, maybe simply a trick of the eye and maybe he's Mysterio? Quite a leap I know but no more so than he has to be Norman Osborn. To round out the team, I suppose you'd have the Lizard return and either have Norman Osborn as the sixth member pulling the strings or add someone like the Scorpion as another villain easily explained by Oscorp tech. All these villains would battle Peter and in defeating them, he would figure out that Oscorp is behind it all, realizing the father of his "old friend" (so says the synopsis) is his greatest enemy. Whoever is cast as Norman could be shown at the end vowing that he need to take care of Spider-man himself leading to the Green Goblin in part 3.

I've also heard people kicking around the idea that Feore is going to play J. Jonah Jameson. Although I feel Colm Feore is a great actor, I really hope this isn't the role he was cast for. I just can't imagine him with a flattop and moustache chomping a cigar looking anything but ridiculous. J.K. Simmons did a wonderful job in the Raimi films and I know this series wants to distance itself from those but this is the one place it might be worth reconsidering.
Clearly you can tell where my hopes lie but I'm more likely totally wrong. Let me know what you guys think.