Oh, MY ARCEUS, they're already releasing the XY version of Call of Legends and Legendary Treasures! *cries* This was one of the best sets of formats we've had apart from that fiasco with toad, hammers, bats, and Lysandre's trump card...and seismitoad because screw seismitoad.
If you'll excuse me I'll be in by bed crying and writing a eulogy for these formats and sets now.....noooooooooooooo!
Well, I'm unsure about what the company has in its mind, but I believe it will be sth like it, so it can stall time to release Pokemon Z or Gen 7 with Z. (Anyway, I'm sure Gen 7 will be Gen 6's Z).
If you're interested in my opinion, Toad is a fine card. What makes it "the worst" is it pairs up greatly with disrupting cards, like Crushing Hammers, Enhanced, Grunt, Hypnotoxic Laser, etc. That's why in the current standard format Toad is below 1st tier. If those cards didn't exist the format would be a bless. But no, "we must have:" Ability blockers, Item blockers, energy removal cards, flare tools, etc."
Dragon Selection and Double Crisis (the Team Magma/Aqua set) were both released as separate mini-set packs in English. Shiny Collection was released as a kind of subset within the English language Legendary Treasures set called Radiant Collection, the cards marked with RC before the numbers. The most recent, the Legendary Shine Collection, has been kind of split up; some were released in BREAKthrough as normal cards while others were made into Black Star promos, such as the EXes and Full Art Legendary cards that were included in the Pikachu-EX and Hoopa-EX Legendary Collection boxes. There's also the upcoming PokeKyun mini-set coming out in January, but we don't have any English distribution info about those cards at this time.
Double Crisis, was a "mini-set." This time they're going for a Jumbo-size set. So, I suspect sth like Legendary Treasures.
Also, I mentioned the connection with Yugioh, because Konami releases 90% of the time every set, core series or side, on TCG as well, apart from the OCG (japan). It would be a good way for Pokemon to learn through this policy, because it's really effective.