While I hope for an original character, I am not concerned about if they have a few cast members who are known to survive. In all the years of Trek have even two cast members ever died (and not just brought back) on a show. ever? All I can think of for cast is Yar, Jadzia, Lorca (always intended to die) and Shaxs. We have also had a few characters written out of shows like Kes Tyler and the Empress. But killed off, they could still quadruple the death count and have a spare versus any previous (to date) Trek series. Now if they did use Uhura, unlike Spock we really know very little about the character. She is competent in her long career, and achieves career advancement and lives until at least Undiscovered Country. Besides knowing she sing, there is almost knowing we know about who she is, versus what she does.