Hmm, I rather wonder about whether they're include Shiny Collection in Plasma Blast or not. As I see it, there are three options of what TPCi could do with Shiny Collection: Release it separately like they did with Dragon Selection/Vault, stick it in with one of the remaining BW sets (likely *Plasma Blast*), or not release it entirely.
The main problem with releasing it as a separate set is the marketing value of it. Dragon Selection was the first release of the Dragon-type TCG cards and as such was a pretty big hype. It was also fairly age- and gender-neutral, so it appealed to a wide range of buyers. Most of the cards weren't very playable, so I can't imagine it catered to the serious players in either its English or Japanese release, but I'm guessing that those types of players don't buy sealed products as much anyway, compared to collectors and younger or less-serious players. On the other hand, Shiny Collection is definitely female-biased. Like DS, the cards aren't particularly playable so you lose out on the serious players market, and you also lose out on a lot of the younger male demographic because of the "girlishness" of the cards.
Similarly, Shiny Collection didn't really have anything new like DS that would require being released separately. If you remove the artistic holo decorations, the cards could be slipped into any set. The only real exception to that is the Full Arts, because they're made in a different manner from the other full arts, being a simpler flat glitter holo style than the textured printing of other FAs. And even then, 4 out of 5 of the FAs are reprints; only Meloetta EX FA is a unique FA in this set (since Meloetta EX herself is unique to this set). Of the 20 non-FA cards in the set, 14 are unique to SC, including one EX (the aforementioned Meloetta) and one supporter (Elesa). 6 of those cards are 3 stage 2 evolution lines (Serperior and Gardevoir), and there's also a stage 1 evolution line (Ursaring).
Slapping 15 cards into the Plasma Blast set doesn't seem like it would be a big deal. The hardest part might be recreating the FA in the regular FA style. On one hand, slapping the cards into Plasma Blast helps inflate the card list and releases those cards into International markets. On the downside, it removes from TPCi a potential source of extra revenue in the form of another separate mini-set like Dragon Vault
I guess part of the decision on whether to make it separate or not will be dependent on how well DV sold internationally; if it did really well they might be more willing to give a separate SC a chance, but if it did poorly, I doubt they will, especially for something that would be harder to market. Of course, they could tweak the set (or at least the packaging and marketing of it) to make it less gender-biased in its appeal. Or maybe they could just take some of the cards (like Meloetta EX and Elesa) and release them as promos for something or other.
