Walkers in the Waste

With the reveal of Legends of Runeterra, we've gotten numerous cards that provide some degree of world-building information. In the case of some of them, however, they open up more possibilities than they answer questions. I believe this is the case with the following two cards: They-Who-Endure, and She-Who-Wanders.

https://i.imgur.com/zVJJXme.jpg[/img] https://i.imgur.com/YHjyUHG.jpg[/img]

Originally, the Howling Abyss was the place where the Iceborn cast down their Frozen Watcher masters. In their old incarnation, the Frozen Watchers were a race of cyclopean creatures that dwelt in the Freljord, who possessed powerful magic and gave the Iceborn the gifts of True Ice and immortality, but were betrayed by the Three Sisters and their followers.

However, the Watchers have since been retconned into being significantly more dangerous beings of titanic proportions (the "smaller" specimens among them being the size of mountains). They appear in the form of a mass of eyes and tentacles, though this is, of course, the most basic way to describe them.

So then, what are these?

https://i.imgur.com/QlNio5h.jpg[/img] https://i.imgur.com/0Wft9ks.jpg[/img]

These giant, goat-like(?) beings have been revealed as part of the Freljord deck, and are high-cost, high-power cards that are fueled by the death and destruction of other units. Specifically, They-Who-Endure grow stronger with every creature that dies during the game, whereas She-Who-Wanders has the ability to fire a ray of destruction from "her" ("its"?) eye and instantly kill every other card in play. In the flavor text, looking at them drove one Freljordian mad.

Their appearance is even more suspicious—namely, they strongly resemble the original concepts for the Frozen Watchers:

https://i.imgur.com/q7Rzx5E.jpg[/img] https://i.imgur.com/KMNSwTU.jpg[/img] https://i.imgur.com/lTbtuON.jpg[/img] (they also happen to resemble the statues that decorate the Howling Abyss)

We know that the Watchers are (with all due respect to the impressive size of these creatures) too big and too eldritch to be them, but their looks draw too much from those of the original Frozen Watcher designs for there to be no connection. Are they Freljordian proto-Voidborn, like Vel'Koz? Perhaps they are Freljord-native creatures tainted by the Void? Since the shape of their visage is also prominently displayed among the Frostguard tribe, are they servants (or perhaps the new patrons) of Lissandra and her disciples?