According to the distributors, a new special collection called Pokémon Card 151 will arrive in Japan on June 16. This expansion will bring back the first 151 Pokémon (including Kadabra, which has not received a card for 20 years). This expansion will have 165 cards before the secret ones.
We will have back the Binder + Envelopes format that we saw in Pokémon Go with Charizard, Venusaur and Blastoise as protagonists. They will have 5 booster envelopes and promo cards.