Everyone and their uncle is reporting that Marc Webb, a music video mainstay turned feature director with last year's "Mopey Guy Pursues Manic Pixie Dream-Girl Indie Rom-Com #472" (released in some markets as "500 Days of Summer,") is Sony's go-to guy for "Spider-Man: The New Class."
Webb had a lot of heat on him, even prior to "Summer," but he's new enough to not have precisely a ton of clout. Make no mistake - the only people they're looking to hire for this are people who're already in-sync with the pre-mandated approach OR people who can be pushed around INTO the pre-mandated approach.
The important detail to take away from all this is how fast it's been: Unless someone at Sony is blowing smoke, they had a script the DAY they announced #4 was canceled and now they may have already nabbed a somewhat-sought-after new talent for director. In other words, it looks more and more like they'd decided on this course of action faaaaaar in advance, and that all the stonewalling of Sam Raimi over the villain was quite possibly a manuver to get him to leave "voluntarily" so this reboot could proceed. Not at all an unheard of move in the business.
"Spider-Man: Breaking Eclipse" is currently slated for 2012.