So... X2 and Y2, or Z? WARNING SPOILERS!!!

[Raphetty]

Well I'm going to go with ZX and ZY. Kinda more interesting and original perhaps? And a nice way to keep the Z but still have 2 more versions.

[SaRo|Rapidash]

I think there's almost definitely two new versions, mainly because of the moves Thousand Arrows and Thousand Waves.

Much like Ice burn + Freeze shock, these moves are in the games coding but no pokemon can learn it. The animation looks very Zygarde-y with hexagons and the like for both, and both are ground type moves identical to Land's Wrath, bar a secondary effect (Arrows hits flying types and levitators, Waves traps pokemon). For this reason, I believe there will be two 'Z' versions, and at a guess I'd say Zygardes two formes will be built to combat Xerneas and Yveltal respectively. Xerneas being a deer thing, it would be trapped by pray (thousand waves), and Yveltal being a flying type would be hit by Thousand Arrows, so it makes a bit of sense in that respect too.

Edit: ignore like the first two sentences of the second paragraph - just noticed someone's already said their effects

[lets all go out for some frosty chocolate milkshakes]

(trigger warning: my usual incomprehensible schizophrenic pokemon rantings)

i know this has probably been theorised before but the third legendary always turns up and owns the other two both in general and plotwise, so with all these big powerful destruction-y techniques im thinkin it's basically gonna be a ragnarok situation in the third game??? (you can't drench the game in norse mythology and avoid doing ragnarok)
like zygarde just turns up and goes "you know what ive had enough of the both of you" (can't kill them cos they're life and death) so its all Hidan style instead and it just literally buries them both and turns to humanity and goes "r u next?????"


like Ginger Cyrus was going on about humanity being unsustainable and scarcity and all that, so im guessin its gonna be one of those apocalyptic platinum style "oh no the big enemy is gonna literally total the entire planet" things 
(sadly its probably just gonna be some stupid "zygarde recognises ur pokemon loving heart, young trainer, with ur faith in the pokemon u saved the world, thanks trainer, thainer" ending) (as much as i'd love for previous gens boxfront legendaries to come in and do something they probs wont)   

to be total turbonerd handwaving wild "there'll be a digital type!!" theorising about prev. gens tho, like i'd love for kyogre/groudon/rayquaza to be the ones that trashed the ecosystem?? by warring over the land and the sea again but that wont happen either


altho! they could throw us all a total curveball (unlikely) and have "z sapphire" and "z ruby" somehow? why else did the gen III legendaries get mega forms?????????? (i hope i get some nerds hopes up only for them to be dashed when they reveal its "pokemon ZZ top" and ken sugimori himself goes "cos you nerds went on about it too much im not allowing a gen III remake, u blew it, stop asking about the one time we did 16 gyms in gen II, stop writing me letters, i want to go to bed forever")

[Spriter]

Doesn't what RR said basically point to X2 / Y2 then? Considering they tried it last gen  (and not a lot of us expected B2W2 afaik), it wouldn't be a surprise if they tried it.

Grey was expected last gen but we got B2W2, and Z is expected but...could X2 Y2 be made instead?

[SaRo|Rapidash]

Doesn't what RR said basically point to X2 / Y2 then? Considering they tried it last gen  (and not a lot of us expected B2W2 afaik), it wouldn't be a surprise if they tried it.

Grey was expected last gen but we got B2W2, and Z is expected but...could X2 Y2 be made instead?

I wouldn't say X2 and Y2, but I do think there'll be two 'third versions'. Perhaps, as other have suggested, XZ & YZ (or maybe AZ and ZZ?)

[Captain Jigglypuff]

^Or go with Alpha and Omega except using the actual Greek Letters.

[Joe_Pokemon2015- MEGA RAYQUAZA!]

^Or go with Alpha and Omega except using the actual Greek Letters.

What about Phi and Theta? They're symbols used for angles in a Cartesian plane. It goes well in keeping a math theme here- X and Y are the names of axes.

[Spriter]

What about Phi and Theta? They're symbols used for angles in a Cartesian plane. It goes well in keeping a math theme here- X and Y are the names of axes.

Knowing Nintendo, I doubt they'd use that, because how many fans of Pokémon know about Phi and Teta?

[Delicious_Scout]

Knowing Nintendo, I doubt they'd use that, because how many fans of Pokémon know about Phi and Teta?

Most Spaniards know about Tetas, especially Serena's.

How many of us made a correct prediction regarding the names? No one. Kanto Remakes? Nobody. Johto's? Nope. Unova Sequels? Unexpected as heck.

But I wish the names were "Pokémon X-tra" and Pokémon "Y-so serious?".

[Captain Jigglypuff]

I only suggested Alpha and Omega as the representations of Yveltal and Xernas with Xernas as Alpha (Beginning due to it being the Life Pokemon) and Yveltal as Omega (End for the Destruction Pokemon).