This from MTV's Splash Page...
“Right now, David Lindsay-Abaire, a New York playwright, is working on the screenplay. He says that he’ll be done in about four weeks with his first draft. So that’s where I am right now. And I’m just about to hire a production skeleton.”
“I’ve learned the value of brevity,” said Raimi when asked whether there were any lessons he’d be taking with him into the the movie. The run time for “Spider-Man 3” was 139 minutes, the longest out of the film series.
Raimi was also asked by MTV whether Kirsten Dunst will return as Mary Jane Watson?
“Kirsten? I have talked with her, and she’s very excited about the possibility of it,” Raimi revealed, insisting that although Dunst is willing, it will be the director’s call to make after he reads the script by Lindsay-Abaire. “I think I’m going to have to read the screenplay and make sure everything we’ve talked about is working, before I could honestly tell you absolutely how Dunst’s possible return would go.”