Hello Azure and welcome, they are a lot to say and to discuss about Kaname's plan and the expected ending...anyway..
my personal expectation is that Hino somehow fulfills the co-existence idea because underneath the love triangle or anything else, this co-existence seems in reality to be the main conflict or fight of good against evil in VK..
the manga begins as such introducing Cross Academy, the function that it serves with its creation and also a situation given to us like granted; that there is war that is going on at the background of history centuries now.
So I am expecting Hino to close the circle that she opened there and to at least if not achieve coexistence in great scale, set the foundation where it will apply.
Now about Kaname, Yuuki and Zero, I am keeping the fact that they are both keys (as Hino had stated) for co-existence and so I doubt that Hino will kill anyone of them as both three will be the main columns, despite the clues that Hino provides here and there; at the first arc it was Zero's life at stake, Yuuki and Kaname saved him, now is Kaname's, I think the script shall balance.
And about the final couple I want to believe that it will be Yume because of all the strife and the fight that Kaname has been going through, being mainly lonely in all of these difficulties.
And because now the main conflict again focuses on Kaname and Yuuki as with Kaname's departure the boundaries of their relationship are on test. I think that they shall make their circle too and Hino will end what she has started and continued for more than 13 volumes.