Having a name and being a genius didn't save Neji's life, the point is kids die and nobody better than her.
Ps. Rin is the reason Obito did what he did. The flashbacks were in the Naruto series so it's the same as if it happened in Naruto.
I have a feeling your right but the foreshadow and build up is too strong for her not to die. Kodachi could be trolling us we shouldn't forget he's a second rate writer, however I'm giving him the benefit of the doubt. She would serve the most in Boruto's development since she is his everything. It was empathise many times he puts her above his selfish self. He did it again against Kawaki and the broken vase pointed to it again. You couple that with her care free toddlerish behaviour(innocence) makes her the perfect candidate. If he she and Hinata don't go then Momo's prophecy would've been for naught.