bbninjas said:
I would imagine KSS-on, as it sticks to the XY theme. Also, XY-on would remove the traditional Potion, as well as the Catcher. It'll also remove the Switch... but that got reprinted.
Also, XY-On would remove Crushing Hammer, as it was printed in KSS, and because KSS came out at approximately, but not exactly, the same time as LTR, not to mention that KSS could be called "Euro-LTR", KSS is dubbed the official replacement for LTR for the European continent, because LTR itself did not make it to Europe officially. Sure, LTR is still legal in tourneys held in their territory due to loose "foreign cards" rules that only takes language, not local/regional availability, into account when determining what cards are legal in the tourney's location.
^ You see, part of Europe speaks the same language as the US, and since the English language is the primary language in the UK, Ireland, among other official English-language countries, players who reside in such countries are still able to use LTR cards due to local language rules, but getting them is a different story than those whose expansions have been released in their jurisdiction if the cards did not have an official release in their continent of residence: in order to get them to the UK, since they weren't officially released in Europe, they are forced to either import them from the US, and/or mom-and-pop shops that sell imported cards, because there's no official European-centric outlet that carries any packs of cards in that expansion, and since KSS is a replacement for the would-have-been LTR theme decks, plus the fact that you can buy KSS cards in Europe officially, unlike LTR, I hate to burst your bubble, KSS-On wishers, but the only logical possibilities for the next rotation would be:
1. LTR-On for the North American market, with XY-On for Europe and other regions outside NA, due to the Concept Pack idea that is the true classification of KSS-On: KSS-On is technically a sub-set within LTR, so officially, I previously thought KSS-On was an expansion released a couple days after LTR, but I was wrong: Concept Packs are not main expansions, and since rotations only consider main expansions, and pulls every card printed before the cut-off expansion from rotation outside of the reprint factor, aka the "Base Expansion of Format", or BEoF for short, so cutting LTR would mean cutting KSS too. And when an expansion is not released in one major territory...
2. XY-On for all territories. If Europe is to get XY-On with KSS being not a main expansion, but still has the first Kalos cards, and since almost all of them are reprinted later as promos anyway, almost all the KSS is legal under reprints anyway, so why extend the lifespan of KSS itself in Standard format? Since Crushing Hammer is not reprinted past KSS, XY-On means the only hammers remaining in standard are Enhanced Hammer, and that's it for the hammers, but let's chill: Perhaps crushing hammer could be in the Hoopa-themed set in the post-Worlds period of the play! pokemon season, or it could be forgotten and rotated out, then reactivated in a future unnamed set... Decisions, decisions, decisions, all that have to be made by the TPCi regarding Crushing Hammer's future in XY-On...
3. No rotation at all. Lasers can still be used, especially on Rays, as a counter to Emerald Break that works by stopping it if it stays asleep, unless Keldeo rescues it by Rush In, but as that possibility can be nullified by Silent Lab, that rescue has a chance of failure before it is even attempted, unless the SL stadium is replaced prior to the attempt to rescue Ray from Laserville, and Emerald Break's user can be switched back in to put it to good use...
^ Apologies, long post, but I hope you understand my two cents...