Sam Raimi told Empire magazine that he already has an idea for the villain in Spider-Man 4.

He said: "I like it in the Marvel comics when Spider-Man fights Morbius... He's really cool. A vampire! I like that combination of superhero plus supernatural."

In the comics, Morbius wasn't actually a vampire in the supernatural sense; instead he was a Nobel-prize winning biochemist who (unwisely) attempted to cure his rare blood disease with a combination of vampire bats and electroshock therapy -- giving him "vampiric" characteristics. The character became an important part of the Marvel universe, doing battle with Spidey, the Human Torch and the X-Men.

The film is currently at the script-writing stage, with the last news on the project being that Pulitzer-prize winning author David Lindsey-Abaire had been signed on to co-write the sequel.

Raimi said way back in October that filming would possibly get under way in 2010, with the director currently putting the finishing touches to horror Drag Me to Hell.

Source : IGN Movie