World trees in Azeroth don’t have a great track history really do they…
- Nordrassil being the original tree at the top of Mount Hyjal, but damaged during Archimondes assault there during the Battle of Mount Hyjal.
- Vordrassil, or what remains of it in Grizzly Hills after being corrupted by Yogg-Saron and then taken over by the furbolg.
- Shaladrassil in Val’sharah, twisted by the Emerald Nightmare.
- Then there’s Teldrassil…
So a future home needs to be:
- Not on top of ancient power fonts like the Well of Eternity,
- Not near any Old Gods prisons,
- Not used as a prison for a bunch of Satyr and left guarded by people connected to the Emerald Dream and susceptible to corruption,
- Non Flammable.
So maybe not another big tree 
Just a suggestion 