The set released in Japan on October 21st. It features 98 cards before secret rares. The set will feature Lugia VSTAR, Unown VSTAR, Regidrago VSTAR, and Regieleki VMAX.
Pokémon Japan also released a piece of artwork to celebrate the set. It reveals the set will also include the Omastar line, Armaldo line, Claydol line, Stunfisk, and Stonjourner. Their cards haven’t been revealed yet. This seems to be an “ancient” set, almost like another Fossil or Neo Discovery.
1 Booster box includes:
"Please note: this product is in Japanese"