This answer really convince me (:
Hinata isn't dead. Kakashi isn't actually dead either.
There is a pattern in the manga. All meaningful characters get an
entire chapter devoted to them when they die. They get flashbacks and
introspection. They don't just roll over and die.
Jiraiya died a heck of a death, a memorable one, even if I didn't like it but is true. He died a heroic death and the whole manga was devoted to him when he died. Also Kakashi and hinata's stories are incomplete. Specially Hinata's.
Hinata never prooved to her father that she was worthy of leading the clan, that is incomplete. She never fought Neji which is the idea of her 64 palm defense technique, for her to defeat Neji. That was also incomplete, if she dies her whole storyline was totally pointless. Jiraiya was a legendary character already his story was to train Naruto and he did, he fulfilled his purpose and died. See.
Hina and Kakashi are alive. :)