Yuuki can't and doesn't want to revive, she gave up her life so Kaname could live as a human.
Narratively that would be repetitive too.
But Kaname isn’t happy as human. He feels like he’s lacking something. That something is Yuki. Yuki is present in Kaname’s heart even literally. That’s her heart beating in him lol
I personally believe the point is that Kaname starts to find a reason to live as a human because if he just idk, die or comes back to his usual self, Yuki and everyone's sacrifice will be in vain.
Thats why she also left her daughters to keep him company, so he wouldn't be alone in his journey, but Yuki's story is finished, I don't think she'll come back.
I seriously don’t see her sacrifice being in vain, because Kaname during this time also learnt the human ways. Yuki was a human before too but she broke the curse and came back as a vampire.
Also, what would his daughters do? Lol Ren will die sooner or later, only Ai will keep on living alone because she’s a purebred vampire.
Now I just really hope that present Kaname can revive Yuki and finally be together again! They were meant to be since the very beginning.
Also VKM is ending soon.