This looks to be a great time of year for Asmodians. They'll celebrate the dark days, chasing the Wild Kurthanir hunt leader during the Wild Hunt, and preparing festive traditional dishes in between hunting sprees.
The Elyos don't seem quite as happy about all of this, probably due to the undead wandering around Elysea and invading the villages. The eclipse causes undead creatures to rise from graves every few hours, leaving Elyos little time for hunting and feasting. Their time will be spent joining Dark Knight bands to battle the undead back into their graves.
Whether Asmodian or Elyos, it doesn't look like you'll be bored during the Harvest Revel. Aion promises new lore and treats each day in addition to the rest of the celebration, so be sure you log in to enjoy the first ever celebration in Aion.