As posted before, the box will release in Europe on January 18th. It will come with an Eevee-GX promo card, a jumbo version of the same card, four booster packs, and a PTCGO code card.
The Eevee-GX is one of three that was released in Japan this week. All three are exactly the same but feature alternate artwork. It is unknown if and how Europe will get the other two Eevee-GX.
In America, we will be getting Eevee-GX and its evolutions on January 18th in our Jolteon-GX / Flareon-GX / Vaporeon-GX Special Collections. Each collection will come with a holo Eevee-GX promo, a holo promo of Jolteon-GX, Flareon-GX, or Vaporeon-GX, a jumbo version of the Eeveelution-GX, five booster packs, and a PTCGO code card. Each will cost $29.99. We’re assuming the collections will have the three different Eevee-GX, but there’s no confirmation yet.
Ability: Reviving DNA
Once during your turn (before your attack), if you have a card that evolves from Eevee in your hand, you may play it on top of this Pokemon to evolve it (excluding your first turn or the turn this Pokemon comes into play). If you do, heal all damage from this Pokemon.
[C][C][C] Boost Dash: 100 damage.
[C] Happy Maker GX: Search your discard pile for 3 cards, show them to your opponent, and put them into your hand. (You can’t use more than 1 GX attack in a game.)
When your Pokemon-GX is Knocked Out, your opponent takes 2 Prize cards.
Weakness: Fighting (x2)