Acting411 has some new info on the schedule of Eclipse, including news that rehearsals will begin in August and filming in late September–

Rehearsals are tentatively slated to begin August, 2009 with actual filming starting in late September, 2009. The release date for Eclipse has been announced as Wednesday, June 30, 2010.

Roles Currently Casting:

Leah Clearwater: Female, 19 years of age. Seth’s big sister, and the only female member of La Push wolf pack: “She is tall and slender with beautiful skin and short cropped black hair. She would be considered gorgeous if not for the perpetual scowl she carries due to a broken heart and her anger issues.”

Seth Clearwater: Male, 15-16 years of age is a “tall, gangly-limbed boy with a huge, happy grin, Seth idolizes Jacob.” Black hair, lean muscle type, think swimmer type body.

Riley: Male 19-21. Good looking, blond, clean-cut, muscular college guy who falls victim to Victoria. He’s in his early to mid 20s and Riley was a newborn that was created by Victoria to act as the leader of her recently formed newborn army. He accompanies Victoria in her attempt to murder Bella Swan.

Maria: Female mid-20’s, Hispanic, petite figure, brunette, dark eyes with a soft and musical voice. Maria looks for humans that she could turn to vampires to create a “newborn army”.

Bree: 14-17, beautiful, 5′1″ – 5′3″, short dark hair, fair skin. Has a high pitched shrill scream. She is one of the newborn army who ravaged Seattle, killing many with her fellows under the guise of a serial killer.

Royce King II: Male, late 20’s, out-spoken, comes from wealthy family. He was a human who lived during the time of the Great Depression. He was engaged to Rosalie Hale for a short period of time.

[thanks, everyone that sent this in]

UPDATE: Some or all of this may be false, so take it with a grain of salt. This website has been correct about certain things and wrong about certain things in the past.