The most benign interpretation of elven reunification is the Alliance High Elves get to make a home in Quelāthalas.
The best interpretation of elven reunification is they go home and live on a farm and we never hear about them again. And of course Arator is not a High Elf. Heās a Half Elf who seems welcome enough to be able to live in Silvermoon.
Fair enough, but I would argue people shouldnāt be looking for support for extreme outcomes inconsistent with how the game is built. At the end of this expansion, Quelāthalas will still officially be Horde territory and as much a part of the Horde as it is today simply because the wider playerbase outside this topic wonāt stand for anything else.
The Alliance presence in Silvermoon seems temporary. I canāt wait to see how that will unfold and if they will retreat to Silverglade refuge at some point.
It is temporary. Of course because Blizzard requires the Zone to stay like that forever for the sake of alt leveling and new players the zone will remain unchanged. Since for better or worse Blizzard abandoned telling the story from two perspectives.
I consider it a loss after spending TWW listening to Bronzebeard Family drama, babysitting whining King and keeping Alleria from killing us all in between her Mary Sue moments.
Yet narrative wise most of them will leave and at best all that will remain are a few former Alliance High Elves who may want a quiet life.
So they will leave after defending their homeland, leaving behind a Void/Light Well to maintain?
Nobody knows what happens at the conclusion of the March on QuelāDanas raid. And remember I would prefer they stayed.
And were then forgotten about.
Why? 
Iāll find you in Silvermoon and shave your head! 
We just know that void elves and especially Alleria are exiled from Silvermoon because they represent a threat to the Sunwell. But theyāre not a threat to a voidlight well
Assuming the Well remain font of both. Which is unlikely as Light and Void are opposed powers. They donāt coexist.
It wonāt. At the climax of the raid it is clearly a voidwell (which would mean all Thalassian Elves would become Void Elves, and probably worse, if it were left like that).
Likeliest outcome will be the well restored somehow but in such a way that there is a cost. Xalāatath will almost certainly have gotten what she needed, otherwise the story would be unable to progress.
A void-light well is a contradiction.
Isnāt one of the raid bosses infused with both the light and void inside the raid?
Beloāren I thought was the name?
And he is suffering for it. Chronicle Volume 1 even told us that the casue of the Warcraft universeās big bang was the interaction between light and void in the primordial universe.
The forces are fundamentally incompatible and cannot co-exist. Instead, one tends to turn to the other.
Absolutely.
They say a light-well is impossible but we already know that a creature made of both is already in the files 
The blood elves will need the void elves to maintain their well, thatās why they will put their exile to an end.
Then take your pick.
Both cannot be true and until we see the raidās end we donāt know what the result will be. Some think that the Sunwell is instead being contaminated with all energies, after all it has been fouled by Death when KelāThuzad was ressurrected and Fel when KilāJaeden attempted to use it as a portal. Maybe it is being turned into something else.
But also remember that it is immensely unlikely that the end result will be a well that is a combination of both void and light, because not only is that a bit of a contradiction, but the end result would be all Elves would be the same and it is immensely unlikely Blizzard wants to go down that path.
Youāll know in five or six months.
The Sunwell as you know it made of pure light is definitely gone according to the datamined files. A new type of well was created.
Yeah, youāre right no one knows for now. But I still believe Beloāren represents what the Sunwell will eventually become.
All elves will benefit from it, not just the blood elves.
I doubt it. Either we restore the well at the end of the raid, or we will try and fix the well as the remainder of the story.
My money is on the end of the raid. And the reasons are threefold.
1.) Void and Light are unstable together. You point out the Phoenix, yes, but he has also clearly been driven quite mad by being tainted as he has.
2.) Lorewise, this puts all Elves on the path to becoming Void Elves. Which while one way of ensuring duplicates of races on both factions and definitely the most hilarious one (nobody gets high elves would be the greatest developer revenge of all time admittedly) , is probably not what Blizzard wants.
3.) The aesthetics outside would be awful. The corrupted well pours a tower of void into the sky that dominates everything around it. Looks cool in the raid and maybe even as a temporary state between the conclusion of Voidspire and whenever we beat the raid, but it will be overpowering and kind of awful if it is the permanent skybox. I doubt that will endure simply because it will make Silvermoon incredibly uncomfortable on a deep level and it would kind of ruin Eversong Woods.
I saw that Beloāren will be a mount with both light and void complexions and it doesnāt seem to be harming him.
One of the last clutch of Alāar, Beloāren was raised for the purpose of protecting the Isle of QuelāDanas. In the aftermath of the Voidspire. Beloāren has been irradiated by Void. Confused and freshly hatched, the phoenix is focused on its sole task: Keep any invaders from reaching the Sunwell.
My personal theory and by no means canon is that both the light and void exist at the same time but both are each an extreme.
If you go into the lore of the Naaru some argue their light state is their true state while others claim their void state to be their true state. So in essence a being of light can turn void and back to light. So maybe, just maybe both sources are the true state of the sunwell as well, we just havenāt seen it being ātriggeredā before, as it was the core of the Naaru Māuru who ignited it once more.
Did you see the Voidwell art from midnight alpha?
Do you really think weāll be able to fix it without any consequences, as if nothing happened?
The Sunwell has already been corrupted once, the story needs to move on.