Will you even understand what i write?
Normally, Bijus cannot die permanently - they just reform after some time, so even if Kurama dies with Naruto that won't matter. It's a tradition in the NV that before a Jinchuriki's death, the Biju inside him/her is sealed in another person, who becomes the new vessel, and that repeats for generations, so Kurama will probably be sealed in someone before Naruto dies, or who knows - he might me set free.