The official Pokémon website revealed the XY Primal Clash TCG expansion set on December 27th, 2014 and it was released on February 2nd, 2015. Pictures from the press release have been added to an Imageboard thread.

XY Primal Clash:

Ancient rivals awaken in the Pokémon TCG: XY Primal Clash expansion! After centuries asleep, the deep power of Primal Groudon EX erupts from the land as Primal Kyogre EX crashes in from the sea, riding titanic waves into battle! With colossal new arrivals like Mega Gardevoir EX and Mega Aggron EX, the XY Primal Clash expansion is alive with the primordial power of Ancient Traits—plus all-new Spirit Link and Special Energy cards. Let the earth shake and the oceans thunder, and get ready for a primal clash like no other!

Features of XY Primal Clash:

• Primal Reversion makes its TCG debut with Primal Kyogre EX and Primal Groudon EX
• 12 new Pokémon EX, including Sharpedo EX, Trevenant EX, Wailord EX, and Camerupt EX
• Ancient Traits, which give Pokémon certain advantages in battle, appear for the first time
• More than 25 Trainer cards, including four full-art rare Ultra cards and two Special Energy cards
• Two new theme decks: Earth’s Pulse and Ocean’s Core
• Each theme deck and booster pack contains a code card that unlocks digital cards from XY Primal Clash for play in the Pokémon Trading Card Game Online

Source: http://www.pokemon.com/us/pokemon-tcg/xy-primal-clash/explore-and-watch/

Pokémon TCG: XY—Primal Clash is the latest expansion to the Pokémon Trading Card Game franchise.

07/01/2015 - Pokémon TCG: XY—Primal Clash is the latest expansion to the Pokémon Trading Card Game franchise. Booster packs and theme decks—Earth’s Pulse and Ocean’s Core—will be available in stores on February 4, 2015, introducing more than 160 new cards to collect and play.

Key features of the Pokémon TCG: XY—Primal Clash expansion:

• Primal Reversion makes its TCG debut— This expansion introduces Primal Reversion to the TCG with Primal Kyogre-EX and Primal Groudon-EX.
• 12 new Pokémon-EX cards, each with a full-art rare Ultra version—New Pokémon-EX cards include Sharpedo-EX, Trevenant-EX, Wailord-EX, and Camerupt-EX, plus two new Mega Evolution Pokémon: Mega Aggron-EX and Mega Gardevoir-EX.
• Ancient Traits appear for the first time—Ancient Traits, which give certain advantages in battle, appear on 10% to 20% of Pokémon in XY—Primal Clash. Their function is similar to Abilities.
• 31 Trainer cards— Many brand-new Trainer cards, four full-art rare Ultra cards, four secret rare cards, and two Special Energy cards add new depth and tactics to the Pokémon TCG.
• Booster packs—Packs of 10 additional cards.
• Two new theme decks—60-card preconstructed decks are designed to introduce players to the Pokémon TCG by enabling them to play right away.

Source: https://pokemon.gamespress.com/Pokemon-Trading-Card-Game-XYPrimal-Clash-is-out-now

Pokémon TCG: Primal Groudon and Primal Kyogre Collections

The Pokémon TCG: Primal Groudon and Primal Kyogre Collections were released on March 4th, 2015. Get inspired by the power of Primal Reversion with the Pokémon TCG: Primal Groudon and Primal Kyogre Collections! Each box includes 4 Pokémon TCG booster packs, a fantastic sculpted figure, and a special foil card. Shake the earth with Primal Groudon, or rule the waves with Primal Kyogre!


The Pokémon TCG: Primal Groudon and Primal Kyogre Collections include:

• 1 of 2 special figures: Primal Groudon or Primal Kyogre
• 4 Pokémon TCG booster packs
• 1 of 2 special foil promo cards: Groudon or Kyogre

Source: https://www.pokemon.com/us/pokemon-tcg/product-gallery/xy-primal-groudon-and-primal-kyogre-collections