So it looks like Jeff Snieder from Deadline (and Collider) has "confirmed" that the next Spider-Man movie will have, beyond Jamie Foxx, Alfred Molina as Doc Oc, Andrew Garfield, Toby Maguire, Kirsten Dunst, and Emma Stone.
I have no idea if any of this is ACTUALLY confirmed, but the dude isn't a hack, but generally I wait til the studio confirms things since Marvel is known for being both INSANELY secretive, but also misleading when it helps.