TWILIGHT franchise producer Wyck Godfrey told THE LOS ANGELES TIMES [1] that the fourth book in Stephanie Meyer's series, BREAKING DAWN, could begin shooting this fall.
TWILIGHT: ECLIPSE has been set for a June 30 release this year, but the timing of the fourth and fifth installments have been mostly unknown up til now.
Links:
[1] http://latimesblogs.latimes.com/movies/2010/01/twilight-producer-breaking-dawn-could-begin-shooting-this-fall.html