FWIW: the earrings from the last two events differ from past event earrings. They come with atk stat.

Ice Crystal Earrings have 50 atk, 350 def (89, 506 at max level)
Will-o-the-wisp Earnings have 100 akt, 300 def (139, 417 at max level)

I've been wanting event earrings that were not all defense stat and I didn't even notice that it happened until today.