I mean, the few Sinâdorei âdruidsâ weâve met are all about shaping nature to suit them, rather than the other way around, and even our Kinder, Gentler Horde 
hasnât totally abandoned the survival at all costs angle that made the Horde so much more interesting than Generic European Fantasy Faction aka the Alliance.
Finding ways to bind the Sunwellâs dual energies into the land again to reinforce the leylines and make Quelâthalas both a truly viable region again and to fortify the region against future Void and/or Fel incursions (and likely make it uninhabitable to the âtraitorsâ who joined the Alliance), regardless of the changes such an act will force onto the local flora and fauna could be an interesting story arc to pursue.
Kaldorei already had a strong grip on flesh-warping magic even Pre-Sundering, recklessly reshaping plants, animals and even elementals to suit their garish style to the point that, to Malfurionâs senses, the spirits of the plants, stones and even the air and fire were screaming in pain, being driven insane by their unnatural configurations. The Shalâdorei seem to practice a far less destructive form of that same flesh-warping magic, and given the only thing stopping them from turning in Raisin Elves again is a tree that is only sustainable by the grace of the Proto-Druids of Suramar and the Leylines of Azeroth.
While the Arcanâdor is stable now, it is still a very vulnerable thing given how flammable magical trees are in this setting, and how unhinged lunatics screaming about revenge and honor and justice can go around causing planetary wars at the drop of a hat. It would probably behoove the Shalâdorei to figure out a way to reproduce the Arcanâdor and ensure a stable supply of fruit and saplings remains viable no matter what happens in Suramar. Possibly trying to plant an Arcanâdor near the Sunwell would be their best bet, and would further symbolise and strengthen the political and social bonds between the two Elven race.
It would be very interesting to see the Lightforged Draenei and Draenei show up offering to help, only to find the Naaru asleep in the Sunwell is already aiding and actively ensuring that the Light is not intruding in the delicate maturation process of the Tree. Velen smiles and nods as if heâs aware of some private joke, the Draenei are confused and the LF Draenei are outraged and assume the Elves must be interfering in a perfectly natural and logical addition of Light energy to the mix, and the Arcanâdor grows, delivers the fruit ⌠and the fruit is infused with both Light, Arcane and Nature energies.
Light would unbalance the tree, but now that it is matured, the essence of the Sunwell can flow freely in through the roots and infuse the fruits, without doing harm to the delicate harmony of the tree itself. Velen winks and nods at Lorâthemar and Thalyssa and tells them heâll be looking forwards to the wine theyâll make with this particular fruit, they look puzzled and say the fruit is too valuable and rare for such things, before he stops smiling, looks at them firmly and says they will need that wine in the future, then smiles again and moves on to speak to the other people at the unveiling.
And its a coin-toss if the vintage is really going to be some truly world-saving MacGuffinite or Velen just wants some nice wine to while away his days of relaxing now that the Legion is defeated and he can officially put his hooves up and say âNot my problem.â when these young whipper-snappers start trouble again.