It's generally a hint that they won't. If you can encounter a wild Arcanine in its normal form, plus as already shown in a previous trailer, Lapras is already shown in its normal form, why would they get Alola forms? It seems that the Pokemon that are available to obtain in their Alola forms have their normal forms either unavailable in the region itself or very rare to find in the wild.
How does that deconfirm it? We don't know how Alolan forms work as far as game mechanics go. We don't know whether they are counting as separate species when it comes to breeding mechanics, whether a Pokemon can switch in or out of it like a Therian form, or whether it's exclusive to certain evolutionary stages etc. etc. For right now, I'm operating under the assumption that there will be an Alolan Pichu/Pikachu if there is one for Raichu, and they haven't been revealed yet.
I disagree with the idea that just because a regular form shows up, it means that it doesn't have an Alolan form; after all, regular Meowth is seen in the overworld in one of the trailers. Actually, Meowth is an excellent example, we haven't seen Alolan Persian yet but it seems pretty ridiculous that the whole evolutionary line won't get the form. I feel the same way about Pichu, with the examples we've been given so far it seems pretty preposterous to assume that the whole line won't get Alolan forms.
I just thought about it, but if we've got the case where Non-Alolan Pokemons like Pikachu or Cubone evolves into their evolution's Alolan Form, couldn't we also be getting the opposite? I mean.. nobody ever mentioned an Alolan Persian so far, am I right?
Well the Japanese trailer that revealed Alolan Raichu showed regular Pikachu evolving into it... We've also seen regular Cubone and Exeggcute evolve into Alola forms of their respective evolutions. And I'm not sure if I quite understand you, if we see the regular version it could still get an Alola form? Do you think all these Pokémon listed in Famitsu could likewise still get an Alola form?
I always thought of that Meowth in the player's home as a clear exception; we know the player has moved in from another region, one where Meowth look "normal," so it's just their Meowth from before. It doesn't mean they got the Meowth from Alola. Like in BW where that one NPC from another region had a Pikachu, you could see it in the overworld and talk to it and everything, but in the wild? Nuh-uh, Pikachu, you're not from gen 5.
I get that technically we don't know all there is about Alola forms right now, but considering they're supposed to be "regional variations," I can't image why they would make them any more complicated than the way Shellos/Gastrodon's form differences function.
Ah, no wonder I missed that....I wish they would just release the same trailers for all regions because it's hard to keep up with all sorts of different sources. :/ Thanks for the info and clarifying your point.
I just thought about it, but if we've got the case where Non-Alolan Pokemons like Pikachu or Cubone evolves into their evolution's Alolan Form, couldn't we also be getting the opposite? I mean.. nobody ever mentioned an Alolan Persian so far, am I right?
The story is that Exeggutor's neck grows a lot in the Alola region's sunshine.It's strange that some evolutionary lines have only one Alolan form whilst others have two. Exeggute doesn't have an Alolan form even though it evolves into Exeggutor who gains an Alolan form? I don't really see how that would make sense considering how it evolved from Exeggcute, the Pokemon that was originally native to Alola.