They could retcon it the same way they did with Mega-Evos in ORAS - it is an alternate universe version of the same region. Who knows, the universe with Alola and region forms might be yet another universe, because we haven't seen any sign of Mega-Evos in Sun/Moon yet. Maybe Z-Moves take their place in this universe, and a DPPt remake could be part of that world.
We've seen passive signs of Mega evos returning, with the Z Bracelet seemingly having a slot for the Key Stone and/or the Mega Stone, the latest purported leak saying that the Z Bracelet is a key item and that Mega-evolving pokemon may not need to hold their Mega Stone. Technically, also, none of the games actually specify that they occur in the same world as any of the other games, even if they (in their own way and without breaking the fourth wall) imply that they have common events. My personal favorite theory is that each cartridge represents a different world, such that Moon=/=Sun=/=Ruby=/=Omega Ruby. Ruby and Sapphire would just be "sister worlds" in that practically the same apocalypse scenarios occur, only they are the exact opposite. Alpha Sapphira and Omega Ruby, meanwhile, are "XY-universes" wherein the ancient histories of the XY games are present, and are perhaps sisters worlds to a greater degree than XY, as there both apocalyptic scenarios, though again the effective opposites of each other, are yet only plans to the common end of awakening Rayquaza.
But then it just becomes...an Electivire. Certainly, an Alolan Electabuzz would be neat, but an Alolan Electivire would be just as neat. Also going out of their way to snub stuff not in gen 1 to the point of only doing the middles of pokemon lines would just be mean.
It'd be like if there was only an Alolan Pikachu, but no Alola Raichu, you know?
But the game features a professor who is studying pokemon attacks, and a middle Alolan form allows for pokemon to have different total learnsets in their final stage and technically would still allow allow different pokemon to enter competitive play by allowing different Eviolite-holding and baby pokemon to enter the fray. The idea also makes sense from a biological or cultural point of view, as nothing prevents a human who in his infancy and teens years grows up in one culture from then going to the (however disparate in wealth or culture) United States to attend college, and so obtain an Americanized education. To use a more animal example (yet involving a human means of transplantation), nothing prevents (in theory) a theoretical baby pig that is raised to be slaughtered from being found and adored by the slaughterer's daughter, and then being taken inside out of mercy and then growing acclimated to life inside a house as a pet, and a pet with a life now similar in every way to another pig that was always raised as a pet.
There are basically different orders of learned behavior, not just in the real world, but also in Pokemon. There's instinctual behavior and behavior learned by observing your parents, and then there's behavior imparted by training. Hitherto, in the Pokemon games the most important learned behavior has been 1) trainers taking pokemon from the wild to their employ), and 2) that of egg moves, as these are the only moves exclusive to origination.
Then version exclusive could work with covering them up. Like they can switch up game version footage to hide the forms. Like if Zubat had a variant in Moon, Sun footage would regular Zubat. Vice versa for Dragonite.
Yup.
Agreed. My guess is that it's possible for ordinary Pokemon to mutate in their evolution and become an Alolan Pokemon for one reason or another (see Alolan Exeggutor, Marowak and Raichu), but that once you're an Alolan Pokemon, all subsequent evolutions are as well. It doesn't particularly make sense to go through a huge biological change and then just, well, undo that when you evolve.
I definitely don't think they'll be making alolan forms evolve into regular form Pokemon, it just feels poinless. Alolan Persian will definitely be a thing but I kind of hope we don't see it until launch cause I'd like to use it on my team and I'm interested in being surprised.
One thing for the future that I'm really curious if we'll see (and forgive me if it's been brought up before and I missed it) is alternate forms for Pokemon that are said to be invasive. Corphish, Crawdaunt, Yungoos and Gumshoos are all supposed to be from other regions than the ones they were introduced in so I think there's an oppertunity there for them to give these Pokemon regional variations for the regions they come from originally.
It makes sense enough to have Alolans become final traditional FE's. From a gameplay-perspective, it allows for different learnsets for final forms and allows different NFE-pokemon, Eviolite-holders, and baby pokemon to be used in competitions. From a real-life perspective, it only supposes that whatever behaviors learned in infancy, though they may yet be disparate dependent upon the place of origination and and other environmental factors like parentage, they may yet be subsumed into a common pattern in adulthood. Though this is not yet an example of the latter half of the previous sentence, you can use ctrl+f to find the example of the "resident" and "transient" orcas
here. To quote the initial part of the section "Controvery", "For some time it was difficult to prove that sympatric speciation was possible, because it was impossible to observe it happening. It was believed by many, and championed by Ernst Mayr, that the theory of evolution by natural selection could not explain how two species could emerge from one if the subspecies were able to interbreed. Since Mayr's heyday in the 1940s and 50s, mechanisms have been proposed that explain how speciation might occur in the face of interbreeding, also known as gene flow."
That would be weird. I assume it's not the case. By how current mechanics go- breeding a female pokemon should produce an identical variant. (Normal Persian= Normal Meowth) But evolution variants such as Exeggcutor and Marowak- I'm guessing that anything born within the Sun/Moon games becomes Alolan- with any Cubones and Exeggcute marked as previous gen will remain normal when evolving.
These rules makes the most sense to me.
It's generally been stated over and over that this is the general theory. If so, the statement that Alolan Exeggcute becomes Alolan Exeggutor because of the stronger sunlight might yet be an oversimplification if other-origination Exeggcute yet does not become an Alolan Exeggutor if raised, trained, and evolved as an Exeggutor in Alola.
The real-life-like answer could lie, not strictly in genetics, but in epigenetics. Alolan[originating] Exeggcute has different different gene markers, and a different in-game marker to boot, than does elsewhere-originating Exeggcute.
Otherwise, I'm for the idea that the mother of Alolan marker and/or form if Cubone or Marowak (respectively, here weakly supposing strictly for the sake of known information that Cubone does not have an Alolan form) should generally produce Alolan Cubone when bred, however, if one breeds an Alolan Marowak with a traditional form Marowak, both forms should be available. This would allow for a controllable quirk that would somewhat represent a real-life phenomenon.
I agree. I'm pretty sure they'll work almost exactly like Shellos. Eastern Shellos always evolves into Eastern Gastrodon, Western Shellos always evolves into Western Gastrodon. The only interesting ones are when regular pokes evolve into Alola Forms, because - as you say - there is some lore-support for it working like a split evolution. Kind of like Eevee's Leafeon and Glaceon, or the "electric field" evolutions, where the place you evolve it determines which form it will take. But while that makes sense for Exeggucute, I'm not sure how much it does for Pikachu or Cubone. If it's determined by their parents/where the original was caught, it would be useful to have some kind of indicator, like the Kalos pentagon, to tell us whether a poke that is possibly Alolan, but looks the same, is or not. Otherwise things getting mixed up in boxes is a real possibility, not to mention Wondertrade!
It is generally supposed this is going to happen, the use of a marker as was used in Gen VI. For all intents and purposes this means that an Alolan[origin] Pikachu will differ more from a traditional[origin] Pikachu than does a "Western" Shellos from an "Eastern" one, and it practically means that come Gen VII's trading environment the meta-enviornment would feature threads asking for "Alolan Pikachu" and "traditional Pikachu", meaning that even if Alolan Pikachu is not differentiated it will for all intents and purposes nevertheless exist.
I could see them giving a NFE Pokémon an alolan form (especially if it was originally a Gen I, and had an evolution in a later Gen, since it seems to be going Gen I only at present) and then making it unable to evolve into its later form (i.e so Alolan Electabuzz can't evolve with the Electirizer), and then the reasoning would be 'Electabuzz didn't need to evolve to counter _____ threat or gain _____ ability, because here in Alola, it adapted by gaining _____ type / ability and so...' blah.
Not saying I want this to happen, but it looks like we can't rule too much out with GF these days!
They could do this, because they could do whatever they want to, but generally this would be disappointing and would be furthermore too much complication for relatively little reward, as you'd be creating complex relationships between such pokemon and items like the Eviolite.