The Twilight Saga: Breaking Dawn' character choice plans for Melissa Rosenberg explained

'Breaking Dawn' by Stephenie Meyer - Little, Brown Books

In Breaking Dawn, there are a lot of new characters that hit the fold, particularly in the last of the three sections. There were so many new vampire additions to the character list, in fact, that Stephenie Meyer added an index to the back so that relationships and associations between them could be more accessible to readers.
Among the new characters, some were paramount to the story - the Denalis, the Amazonian coven, Garrett, etc. - and the filmmakers for The Twilight Saga: Breaking Dawn - Part 1 and The Twilight Saga: Breaking Dawn - Part 2 are going to have a weighty burden if they try to present us with each and every one of them.
According to Melissa Rosenberg (screenwriter for the two scripts)'s interview with MTV, there is a plan in place as to how to tackle this.
"[S]he hopes 'all of them will be there in one shape or another,'" MTV explains.
In the meantime, she wants to hear what fans have to offer in that arena as well. Her Facebook page has served as a communication tool between herself and fans of the series, and she explained to MTV that she does take notes from what Twilight fans have to say on that page.
"I ask people to really weigh in with what are their favorite scenes in the books, what's important to them . . . And there generally seems to be a consensus about one scene or another. It's really helpful for me and I'll interact with them sometimes."