I've seen this topic in other forums but I wasn't sure and wanted a definitive answer. Here Kushina and Minato both acknowledge that she will die even if Kurama was put back in her:
This goes along with the already established extract=sure death. But then we see Naruto live when he "died"...
Do we know what happened to them? Not Itachi's eyes, but his blind eyes. Did they ever state what happened to them? My personal theory is they're waiting somewhere for some random fodder to find them...:kk:...then go blind:lmao: