I refuse to believe Kabuto will meet his end at the hands of the Super Uchiha Bros, I don't know if it's bias or warped logic.
Kabuto, being the main antagonist of Naruto's generation (I struggle to put Sasuke in this bracket) I find it hard to believe he will be dispatched without crossing Naruto's path once more, if not before, then definitely now - after the possibility of sage vs sage has been introduced, with the introduction of Kabuto's sympathetic back-story it would seem to hint at some kind of redeeming opportunity in the future, which we all know Naruto grinds out of opponents on a day-by-day basis.
I'm still curious with what Kabuto did with that one white Zetsu Tobi granted him after his capture of Yamato (it was for personal gain rather then the combined war effort), equally Anko's capture must serve a larger purpose in the battle/future.
Essentially I feel Kishi has made Kabuto too awesome to fall at the hands of anybody other then Naruto at this stage, especially to tantrum Sasuke after Itachi wins 99% of the battle for him.
Hoping beyond hope for a Zetsu Kabuto doppleganger, and for him to be tucked away in his recluse "corner" as per usual.