I feel like they might be leaning towards something more like they did with the Musketeer trio/quartet:
Xerneas, Yveltal, Z legend would all be a trio
Then, the squirrel legend would be the fairy event pokemon
No because the 4 musketeer were kind of how the regis, 3 legendary beasts, birds, etc this time we are speaking about true legendaries. I think it will be more like it happened on 4th gen with Dialga/Palkia/Giratina and then Arceus to rule over them....however this "Messenger Squirrel" doesn's seem to rule over Yveltal,Xerneas and the Z dragon...it's just like his slave lol --- http://www.youtube.com/watch?v=uKNKVzVAqUk 3DS FC:3351-4244-8930
Yeah, i heard this rumors about being based on norse mythology but i didn't really looked into it untill yesterday, and when i found about these 4 stags, i couldn't stop looking for more information lol i hope this help those who don't know about this whole theory or just knew a little about it.
I'm a little concerned about that squirrel legendariy, will it be a cute little creature or they will make a badass squirrel (with piercing teeth as the mythology says)? I don't know but this will hype me a lot more for the release! Anyway here we are waiting for the god damn coro coro leak :D
600 BST mew Clone confirmed, naturally learn Super Fang, Hyper Fang, BIte, Crunch and elemental fangs. Has an ability which boosts bite moves.