Maybe next year they will be available again.

My goal on this event was to get Icarus and DDE. After hundreds of souls finally got Icarus but DDE. Run out of XP material and gold , but got some ironite. So I am leveling up my around 40 g/a pumpkins running powerslave. Fortunately we have 5 days to go.
It has been 3 events last 3 months were I have summoned maybe 500 or more g/a souls and have not got DDE. Amazing!