There will be Promotion Packs for both the Official Card Game and RUSH DUEL (these are the packs with the really quirky gag cards)

Yu-Gi-Oh! CARD GAME ART GALLERY will display various artworks from the Yu-Gi-Oh! Card Game. People who can find Yummy Cooky among the artworks can get a special sticker.

December 20th will be a special stage of the biggest and latest news for the Yu-Gi-Oh! Official Card Game.

December 20th and 21st will both air a special edit of The Fallen & The Virtuous, airing all 6 episodes together.

Other further details will be revealed at a later time.

Typically news about anything regarding a TV show is handled at other stages and is not Konami’s business.

Source