Man, them rainbow flowers are at it again. When will those flowers learn? Flowers can be so silly.
To be real though, I doubt this news greatly because I'm failing to see the connections between rainbows and the hint we already received last year: Flowers.
I will just leave this here for a easy, singular way to understand why the word "Rainbow" could be included in the title and why it could have a connection with the 6th Gen games. Of course, this being a speculation thread and all, this is not fact of any sorts. Just something to give the idea alone a good thought and why it technically could make sense. Explanation further below:
Main Reason: 6th Gen Games are highly inspired by Norse Mythology.
First off, the respective Legendaries are/may be based on a deer, bird and dragon/serpent respectively, all three species which are heavily featured in Norse Mythology.
Starting off with Yveltal, its/may be inspired by the giant eagle named
Hræsvelgr (
Old Norse "Corpse Swallower") who sits at the end of the world, as well
Veðrfölnir, the hawk that is perched on top of the tree, resting in between the eyes of a unnamed eagle. In addition, the first name, meaning "Corpse Swallower" and all, may reference Yveltal's signature attack "Oblivion Wing", in which it takes and swallows the life-force of all living things, technically leaving corpses behind.
Going to Xerneas, its/may be inspired by the Stag named
Eikþyrnir (
Old Norse "oak-thorny") as well the Four Stags named
Dáinn, Dvalinn, Duneyrr and
Duraþrór, whose symbolism can likely be found back to the four pairs of antlers found on his head. In turn, Xerneas's dormant tree form may be based on Yggdrasil itself, otherwise the Tree of Life, and Xerneas is known as the Life Pokémon. In addition, Eikþyrnir resides in
Valhalla eating the foliage of
Læraðr with glowing horns that drip with dew, which could refer to the feature of Xerneas's horns, which also glow, but with seven colors, which may refer to a rainbow theme, as rainbows consist of seven colors.
Finally, with Zygarde, he may/or mostly represents the land dragon
Niohoggr, who chews on the roots of Yggdrasil, explaining why Zygarde is typed as "Dragon/Ground" type. Being a serpent in his 50% Form, may also indicate he's taken inspiration from
Jorgurmand, the World Serpent. For his 10% Form, he's commonly associated with Fenrir, the monstrous wolf, but could also be based on Garmr, the dog of
Hel and who guards
Hel's gate. In its full 100% complete form, Zygarde Perfect Forme may represent
Hel herself, as she's the goddess of life and death, and Zygarde Perfect Forme seems to embody both these concepts in some way, being the Order Pokémon and all.
Lastly, the Rainbow theme, if there is one for the third game/set of games, may be inspired by
Bifrost, the legendary Rainbow Bridge that is said to connect Migard with Asgard. The bridge in theme, as form of my own speculation, could be used to form a stable connection between life, death and order, with the bridge representing Order itself and the balance/path between life and death. In addition to this, the Mega Evolution symbol is commonly rainbow-colored, not to say that the ME concept originated first within the Gen 6 games, starting from X and Y, before going to ORAS. One could say the Rainbow Bridge could be there to connect the two pairs of games with its concept of Mega Evolution.
Adding further to the rainbow bridge connection of Midgard and Asgard, Zygarde's new attacks:
Thousand Waves and
Thousand Arrows, may represent both these realms respectively. Thousand Waves references the earthly land of Midgard (Earth) in which Zygarde keeps its targets trapped to the earthly surface, with Thousand Arrows referencing the heavenly Asgard (sky), and its ability to reach any airborne targets and make them drop to the surface despite being Ground-type, which normally can't affect Flying Type Pokémon. Technically, you could say that Zygarde himself could represent the Rainbow Bridge in question, being both land-bound, yet can also reach the flying enemies of the sky with his Thousand Arrows attack.
What the third game may ever be called (Z, XYZ or even my own guess for Rainbow Z), I'd expect more inspired elements taken from, or reference Norse Mythology somewhere. The Flowers comment in turn, made by Ken Sugimori, may not specifically hint to Gen 6, but rather hint to a future Gen 7, as he was talking about the future, but I could be wrong in this.
Aside that, as to add more potential elements of Norse Mythology representing Gen 6, here are some other speculations, namely referring to some of the Nine Worlds of Yggdrasil:
Midgard:
May represent the entirety of Poké-Earth, or perhaps the Kalos Region alone, depending on your personal definition.
Asgard:
Could represent the Kalos Region in terms with the War that supposedly happened 3000 years ago with a neighboring region.
Hel:
The underworld realm of the same named goddess of death and life, which could refer to Zygarde's underground location in Terminus Cave. The name "Terminus" in turn refers to a end point of something, such as the end point of life and death, representing both aspects equally.
Niflheim:
In terms of Gen 6, this could be a slight nod to the final gym within the Kalos Region, that being Snowbelle City, which is winter-themed. In addition, Wulfric, whose name which sounds Norse like, may represent Odin himself in some way, or perhaps representing the mythical frost giants, either role representing the status of why Wulfric is the last, and potentially the most powerful, if not the largest build Gym Leader of all in Kalos.
Alfheim:
Described as the
Land Of The Fairies, it pretty much represents Laverre City, and its Gym, which specializes in the Fairy-Type. Its Gym leader - Valerie, is pretty much dressed like a fairy too.
Muspelheim:
Doesn't actually refer to the world of Fire and Lava perse, but rather, surprisingly may refer to the villain team in Gen 6, that being Team Flare. The existence of Team Flare may also connect somewhat to Bifrost, which is described to be a "burning" rainbow bridge, again, giving the rainbow theme additional relevance. In addition, Team Flare's leader, Lysandre, with its cooky hair style and all, may represent the Fire Giant -
Surtr. In turn, the Elite Four member - Malva, being a former Team Flare operative, could be represented as
Sinmara, the consort of Surtr, reflecting the possibility that Malva and Lysandre are romantically involved or having a romantic thing going on.
The other three left-over worlds of
Jötunheimr, Niðavellir, Vanaheimr I'm not sure of, but may play a role within the soon-to-be announced game/games that will finalize and finish the Kalos Region completely. There's one interesting speculation to note though, in which
Niðavellir, otherwise known as the
Land of Darkness, may be a new city representing the Dark-type (that is if there's truly a new region starring). If so, this could result in the widely asked/requested Dark-type Gym maybe?
Finally, rounding off the inspirations of Norse Mythology to the Kalos Region, the legendary Ragnarok could be a reference to the War that happened between Kalos and another region that happened 3000 years ago.
And that is pretty much it when it comes to connections to Norse Mythology. In the end, however, this is still all speculation, and not fact, so don't take this too seriously. Hope you enjoyed my take on this.