You know, I'm semi-surprised Kabuto has not revived Kushina or any of Sasuke's immediate family (besides Itachi whose role in this is already done), especially as it's clear it won't be happening in canon. THAT would be an emotional gut-punch to Naruto and must-see filler of the highest order. I am sure there's some rule barring Kabuto from doing so but considering throughout this filler he's indiscriminately reviving people and hurling them at the good guys I don't think it's a stretch.
There's a million ways to hush my voice
And a million ways to kill my thoughts
Maybe I'm all that you fear
I'm a stargazer
My eyes see differently - Blood Stain Child; "Stargazer"