Official Summit Press Releaes - Synopsis Included 

"In NEW MOON, Bella Swan (Kristen Stewart) is devastated by the abrupt departure of her vampire love, Edward Cullen (Robert Pattinson) but her spirit is rekindled by her growing friendship with the irresistible Jacob Black."

Is this their way of avoiding the little Taylor Lautner problem?

Thats exactly what I thought when I read the Sypnosis.