Event realms, or something similar

I was thinking, in the future, it might be nice to have some "other" temporary realms, such as Halloween or Yule!

Put the NPC trader in that realm, like was tested with the event NPC for Spark of Hope, give them quests, currency, and make the realm interesting!

Let it be a wild realm, for sure, but for Halloween it could be a swamp, with something like a "Dark Fae Wilds" (new card, not deep fae haha) card played, lots of fog, orange lights, Dusk 100% of the time, with orange, white, black, type aurora's in the sky, or if night, keep it similar to the Lumberjack card at night, big orange black hole looking thing in the sky.
Have a few side quests, and abandoned houses dressed up like Danu's house, or the houses in Magwytch looking all "witchy" with flowers, Danu's cauldron, etc decorated around. The rewards could be a candy, unspecified and can be used with both Halloween and Yule, or "dried herb" decorations/augments, silly robes, and more skull themed items like from Spark of Hope.

For Yule, it'd probably have to wait until a snow biome is released, but pine trees in a forest scattered with wisps or fae lights, sleigh track marks, lots of deer running around.
Have something like a "Festive Fae" card, that blows windy snow tendrils around like the cloud of corruption in Sylvans, and surround the players.
Quests could be placed here to, for old traditions of yule can be quite dark, perhaps lightening it up to fit with Nightingale wouldn't be to bad.
A meat pie recipe, "covered boxes" (presents) as decoration or augment, green hooded cloak, similar in stats to being basically cosmetic, maybe even wreaths, or wreathe bundle candles, but something nice for people to play with.