It will not be back for Crowns, I don't think. Much like the striped senche-tiger and the imgakin monkey, it is a "symbol" of sorts for those of us who earned them, and ZOS has not shown any motivation in the past to offer those items for sale.
The event rewarded a Mane statue, a set of tall Sugar Pipes, the Dragon's Treasure, and probably a few other things I've since forgotten.