https://www.wowhead.com/news=316807....ser-elune-sylv
Outside of the source linked above, we know several things about Elune from Shadowlands
1- Her influence
spans the entire universe, she
made another night warrior on another world. So
she can act on different worlds without being physically there. So
she isn't an old god,
nor a titan,
nor a death entity.
2- Xal called her an " upstart
goddess "
3- In the old RPG books (shadow and Light)
she was the highest level entity existing (
way above
the titans, sargeras, old gods and wild gods )
4-
She can manipulate different kind of magic :
Holy ( healing ) ,
Arcane ( moonfire , moonspell etc ) ,
Void ( night warrior's infusion ) ,
Life ( regrowing stuff, nature link),
Death ( weaving Ysera's soul ) , you basically have
all the cosmology powers and she can use them all outside fel magic. So
she's defo not a Fel entity, nor a Light Lord.
5-
Elune apparently created the Naaru.
The tear of Elune worked on X'era's heart. Considering
the Naaru were created, according to Kadghar ,
during the " great Ordering of Light and Shadow ", and
that period was the first step of the cosmos' creation ( described in the firsts paragraph of Chronicles )
we can suppose it's also the era of the First Ones. During this Era, the naaru, the titans, and the shadowlands did not exists yet, they were created during or right after.
which means she's older than the titans and the Naaru .
Since she created the Naaru who are one of the cosmos forces, and that the titans, for example,
Eonar, reveres her, probably
made a Pillar of Creation with her power and her name, and
took refuge in Elunaria on the
Elarian sanctuary,
you can safely assume that Elune is above the titans and the Naaru.
Tyrande is actually the avatar of a being who is above the titans and who created the Naaru. Supposedly in the first ones - above or below - category