I'd like to suggest a few fey options besides the current limitation to sprites only. An expansion of fey types similar to the recent expansions of Tiefling and Assimar. Each suggestion is using tech Arelith already has and should not require different models. I'd personally like to see more variety in fey that can be rped.
Brownies - These would be rather simple as they really just need the option to not have wings. And would allow for the rp of house fey that often do chores. Which I could see being fun rp in many factions. This would also allow for Dobies as they look similar to brownies, but with extra pointed ears. Leprechauns, quicklings, and thorn could also use this wingless model.
Frostwind Virago - These would require taller elven models. While I have this one here for a complete list of easily possible fey, I'm guessing this one may want to be left as feytouched decendants only. Due to the likely limited rp a true Frostwind Virago would likely have. They do not experience love and are seen to embody the unforgiving cold of a blizzard.
Leanan Sidhe - Shapeshifter with limitations to only certain humanoid models. They are a interesting case of fey as they serve as muses guiding artists and other creators. However they may also lead to illness or even death for these artists. It would likely be application only due to the shapeshifting, but a true neutral fey like this seems like it has interesting rp potentials.
Lunar Ravagers - As they are generally 9 feet tall, lunar ravagers would require a larger model. While generally they have a sky lodge, cases of lunar ravagers that become seperated or leave their lodge for good exist in lore.
Sirine - Basically sirens, they would just need a regular human model.
Verdant Prince - Evil male fey that enjoy making deals. Human or elf model with green glowing eyes. This could be an interesting opposing option to hags in a way which are female only.