This is a thread to discuss the Fae, the Fair Folk, the Daonie Sidhe, the Tuatha de Danaan, the Aelfyr, etc. etc. etc.
As in the (human-sized, or even larger) old gods of Ireland, Wales, and elsewhere, and their possible inclusion into the game, as Civs, Powers, etc.
Possibilities: These might be at or near (right under gods) the top of a sort of magical "foodchain"/ecosystem, that, instead of occupying space, possibly occupies time (and no, I'm not sure how that would be handled, but I have some ideas), with different "Faerie Courts" for the four seasons, for day (Seelie) and night (Unseelie), what have you.
Other beings aside from these "Noble/Royal" type faeries could also exist, ranging from the much smaller fairy vermin that's already in the game, to actual gods, as well as a host of other beings and critters, including fae animals.
Just the possibilities drawn from mythology alone would be nearly unlimited.
Such beings might have peculiarities and weaknesses (such as being more vulnerable to iron, and maybe silver), as well as strange powers and magicks, once the Magic Arc gets here.
They also might be very skilled, as a Civ, possibly only second to dwarfs in their forging abilities--imagine a civ that can make masterwork items, but can't handle iron or steel.
Faeries aren't typically portrayed as completely evil, or completely good. They're also often shown as a force for chaos, and can be extremely dangerous.
So they might exist in the game as a "neutral" civ that you can very occasionally trade with, but that could turn into deadly enemies at the drop of a hat.
With two (or more) ruling courts, there might be quite a few different factions to interact with--and to be wary of.
Faeries are also often depicted as living either underground, or 'Elsewhere', so they might be a good candidate for a competing underground Civ, or for the population of one of the Planes of Existence that we may be getting, sometime in the future.