Me (DCFan) and another user Rayze Derr was discussing the idea of the legendaries in this game being based on Norse Mythology
My idea: (Not as good as his's ideas)
3 Pokemon Based on Yggdrasil ( Yveltal, Xerneas and ????)
9 Pokemon Based on the Nine Realms
Based on Midgard: Fighting/Fairy
Based on Asgard: Dragon/Fairy
Basedon on Vanir Psychic/Fairy
Based on Jontar Rock/Fairy
Based on Alfar: Grass/Fairy
Based on Nair: Ghost/Fairy
Based on Dverager: Ground/Fairy
Based on Nifiheimer: Ice/Fairy
Baded on Muspellhemier: Fire/Fairy
His ideas ( Much better)
Giant Trio. This Trio shares a Fighting secondary type and are all based, design-wise, on great apes.
Asgantuan Electric/Fighting A large, electric gorilla. Based on Asgard.
Jotutuan Rock/Fighting A hard, stone-skinned chimpanzee. Based on Jotunheimr.
Midgartuan Normal/Fighting Very light-orange, angry-looking orangutan. Based on Midgard.
Ethereal Trio. This Trio all shares a Ghost secondary type and are all very gaseous or elemental-like in appearance.
Nifeid Ice/Ghost A sharp, pointed mass of blue mist. The shape of two arms and a tail are visible. Single eye is a glowing, yet dark blue that flows freely throughout its body. Based on Niflheim.
Musfeid Fire/Ghost A more rounded mass of red/pink steam. The shape of four arms, coming out in an X shape, is visible. Two dark red, round eyes flow throughout its structure. Based on Muspellsheimr.
Hefeid Dark/Ghost A black mist, though not levitating like the others, taking on an almost slug-like shape. A single arm protrudes from its head. Three, bright yellow eyes swim about its body. Based on Hel.
Battle Trio. This trio shares no common type, all being mono-type, and each takes on a very humanoid form, hands resembling human weaponry.
Vanapon Psychic A human-sized humanoid, tall and blue with purple swirls serving as a sort of war-paint. Head is bumpy, it and the neck resembling a human brain. Arms are long, and the ends are stiff with rounded bulbs resembling staves. Based on Vanaheimr.
Svarton Steel A shorter, rounder humanoid, orange in color with blue starbursts as war-paint. Despite its roundness and weight, muscles are very toned. Hands resemble the damaging end of a battleaxe. Based on Svartalfar.
Alfon Dark A very short and thin humanoid, purple in color and sporting war-paint in the form of orange zig-zags. Ears are very long and pointed, dragging on the floor behind it by about a foot (0.3m-ish). Hands have two fingers, each finger tipped with spearheads. Based on Alfheimr.
Drasilic Grass/Dragon A gigantic, land-based dragon, coming just short of Wailord in size. Very thick body and lacking any sort of wings. Beard of vines. Moss, trees, flowers, and various other flora grow from various parts of its body. Extremely slow, especially for a Legendary, but above-average attacking stats and phenomenal defenses. Based on, what else, Yggdrasil.
These are great ideas. Link: http://www.serebiiforums.com/showthread.php?594366-Legendaries-Speculation-Discussion-Thread/page407
I love the idea of lots of Norse mythology-themed Pokιmon but that does seem like a lot of trios, especially given that Xerneas, Yveltal and Z-mon are probably already another trio... Generally I like having fewer legendaries instead of tons of them, so perhaps some of those ideas could be blended somehow into evolutionary chains for non-legends.