Keepers of the Moon in MSQ

[Keever]

Ishgardian Elezen

The devs have not hinted at them being an "unnamed clan".

The ancestors of the Wildwood Elezen were displaced from their ancestral home on the plains when the Hyurans came, migrating in part to Coerthas,
where they established the nation of Ishgard, and in part to the Shroud, where they formed the nation of Gelmorra (the ancient subterranean state that predates Gridania).
Though nowadays "Wildwood" is typically used to refer to the forest-dwelling Elezen, the Elezen of Ishgard, too, share the same common ancestry. As such, Gridania and Ishgard have traditionally enjoyed close relations, with each nation readily coming to the other's aid in times of need.

In other words, in the case of the Elezen, "Wildwood" is more of a cultural moniker than a biological distinction.