From the announcement:
Stoner Loonacy™, the fast-paced matching game, uses imagery from Stoner Fluxx®. Players race to be the first person to empty their hand of 7 cards by matching them to the cards on the table. It’s easy enough to teach in a single sentence, and so much fun you can’t play just one game. Stoner Loonacy™ is a tiny, tie-dye box full of fun (smaller box than our normal packaging).
The street date for Stoner Loonacy is May 25th.