User blog comment:Kmanwing/Bella's Gift/@comment-24.93.103.254-20091216112901

The special abilities some vampires had were traits that they carried over from their human lives that were enhanced by becoming a vampire. ALice had premonitions of the future when she was human, and those premonitions became full-fledged visions after she was turned. Jasper, I imagine, was good calming people down or judging a person's mood, which is why he became able to actually influence moods as a vampire. Edward was probably good at guessing what people were thinking, and thus why he was later able to actually hear their thoughts after being turned.

In Bella's case, she was the opposite of Edward. As her shield was strong enough even as a human to block the psionic talents of the likes of Edward, Aro and Jane, one could say she was naturally able to keep people guessing about her. I think it may be mentioned somewhere (but don't quote me on this) that it also had something to do with the way her mind was organized, and the way she always sought to keep the people she loved safe from harm.

As for possibly continuing the series, there is a note in the Leah Clearwater article on this site that quotes Stephenie Meyer as having said that were she to do so, she might consider writing the next chapter from Leah's perspective. How accurate that statement is, though, I couldn't tell you. But I agree that there are still many, many directions she could take with the characters, and many she could write about if she continued.