We know they're devolving. Not evolving. There is no twist to be seen. It isn't there. It's different. There is no Mega Stones, completely killing it being anywhere near the same. There is no reason they wouldn't at least mention it after showing off the other Megas. It doesn't make sense or add up.
And again, where are you getting this "there's no Mega Stone" from? We only have the name, we know nothing else except that (at least according to Serebii) that "it works similar to Mega Evolution," so please tell me how we know that 100%?
Actually, no. This is ridiculous. Both are returning to their base form as a concept(that's a fact). How they're doing it as different, that's all. One's an Ancient Devolution, the other is fusing to return to what your ancient form was. It's impossible that they don't have similarities because they obviously do.
Which again, it's not devolving, the Original Dragon is not a form of Kyurem, Kyurem is a piece of it like Zekrom and Reshiram. None of those "evolve" or "devolve" into it, they can only reform into it.
Really, it seems we're not going to agree, so lets drop it because it's not going anywhere.
The point in the story doesn't matter. They both happened. And both showed up in the stories too. I'd like to note that they did evolve into the Ancient Evolutions during the show too.
They both happened within their lore, but are not physically present at any point in time during the arcs of the games or show (the movie only has Greymon and Garurumon, and even then they're just manifestations), there's your similarity.
Technically already confirmed. They aren't form changes, as the name would say it like that. Black and White Kyurem don't even count either, as they're fusions.(and not even an evolution)
Hold onto that thought as I'll get to that later.
Also, as the general concept, Black/White Kyurem are officially considered (or at least treated as) forms, so I don't see why you're trying to rewrite the Word of God there.
It was obvious they'd be combined again if they were split up. It wasn't even hard to tell at all. Fusions were not favored too much, of course, due to it being something similar to Digimon and even Yugioh. Who wants to combine the series again? Few if any period.
Again, you're missing the point. The thing isn't that we figured they would reform, the thing is we didn't know anything about how, why, whatever until more information came out. That type of information alluded us until GF wanted to reveal more on the concept.
The point is, we were given very little no information, don't mistake speculation for fact.
An honestly, people need to stop thinking Pokémon is above using other concepts, neither of those franchises have monopolies on the ideas, nor were they the first to use them, and saying "they shouldn't because it's already been done" is just setting up the series to never improve and grow. Everything has been done, even the monster concept has been done before Pokémon, so the last thing we need is for it to become even more stagnant then it's already accused of.
Not sure where you got that idea. In fact, I think it's neither of the above. Mega Evolutions require a Mega Stone, a major body difference(something that is blatantly lacking), and a worn item.
-And again, how do you know they aren't using Mega Stones?
-Minor changes of which, may or may not matter.
-Which we don't know it requires as nothing has come out on the matter.
Assumption=/=fact.
However, it's likely they evolve outside of battle anyway, so they might be closer to an item-induced form change(somewhat similar to the DNA Slicers at best), or something entirely different. Not enough information, besides being confirmed as not being an actual Mega Evolution in any way.
Potentially, but we know very little, so nothing is certain.
If it's not the same name, it's a different mechanic. They actually are extremely consistent with their naming schemes. Forms have that word or Mode in it, and were confirmed as forms too. Like Aegislash's two modes. Those were confirmed as form differences, which were either doable in battle, or by an item outside of battle(or by interacting with an item outside of battle). Overall, it's pretty consistent. Modes are always in-battle. Form Changes are outside of battles. Fusion was a special one similar to a Form Change, but it had different rules and was clearly a different concept, as "using an item" was the only similar bit. Two Pokemon being turned into one was extremely new.
No, that is not the difference. The only difference given is that Forme Changes are those that have minor aesthetic changes with no stats changes, and forms that have major changes in both aspects. That is the only differentiation recognized.
Nowhere is it implied he didn't beat them or have their powers period. We were given zero explanation on why he could fusion change into his other combinations. The only thing that was specific was his true transformation, using the powers of both. Besides, most of the movies aren't even in continuity with the Anime, so it means little. Many of the movies just throw in their powers without an explanation. Mega Mewtwo Y wasn't even referred to as a Mega Pokemon in the movie. It was likely written and faithfully translated before Gamefreak was ready to show up of the actual Mega Pokemon concept, which also explains why no trainers were needed for it to switch around. Another issue is that in execution, it was literally identical to a Mode difference(which Mega Evolutions are pretty similar to things like Aegislash's Mode changes. The trigger is obviously different), where you could only switch up in battle. Mega Evolutions weren't actually very similar to form changes in the first place. At best, the idea of transforming into a majorly differently designed Pokemon while keeping some of your general base design is similar, but they worked extremely differently. Being in battle was kind of important, after all.
The first movie is referred to in the first series, Dawn has a Lunar Wing from The Rise of Darkrai in the Cresselia episode, and Genesect was referred to in the BW anime. So no, they're canon in some sense.
Regardless, that's making assumptions, as well as concessions for a type of Pokemon media that really does its own thing when representing the games (ex. Aim for the Horn!). The anime has no jurisdiction in serving to tell us how the games work, much less how things changed in development because they're already loose with canon as is, they could've represented those elements that way for many reasons other then pre-development changes.