Maybe she has something to do with the Doctor. Some as of yet unseen link. I can't help thinking we'll see her die 9 more times. But next year being the 50th anniversary I get the feeling the Moff has set her up with that in mind.
You mean that with eight episodes to go and then a special, the latter will involve "the fall of the eleventh" iteration of Clara? Intriguing, but sounds gloomy and fatalistic. It would mean nearly a year of Greek tragedy for the show.
Others have pointed out that her birth date is November 23rd and that she died at the age of 26, so her life kind of reflects the show's first run in a metatextual sense.