The official UK site confirms 3 more reprints in the upcoming Astral Pack Seven (coming in early June), which will be either Super Rare or Ultimate Rare, along with other bits of info.
By competing in events at your nearest Official Tournament Store you can obtain special packs, giving you powerful and versatile cards that make your Deck stronger. These store-exclusive boosters are called Astral Packs, and soon you’ll be able to get your hands on the latest version: Astral Pack Seven!
Astral Pack Seven is a 27 card set containing many tournament-level cards and highly desirable reprints to keep your Deck up-to-date with the latest competitive trends. You’ll also be able to obtain holofoil versions of popular cards such as Scarm, Malebranche of the Burning Abyss, Gaia Dragon, the Thunder Charger and Number 103: Ragnazero. In total there will be 14 Common Cards, 10 Super Rare Cards and 3 Ultimate Rare Cards to collect.