Chigorasu is cool! Hope it gets the elemental fangs and a powerful evolution.
Given the fact that Chigorasu is a T-Rex,
and it has an ability tailored for bite moves,
and that it's a Dragon-type, it's almost a given that it will have a high attack stat and at least one elemental fang.
Amarusu is so cute and cool, plus that ability is unbelievable.
Amarusu
is pretty cool (no pun intended), but its ability isn't
that unbelievable, as it's essentially a variant of Normalize that only works on one type, converts said type into a much better offensive type, and grants a power buff that draws similarities to Adaptability, although the actual boost will probably be lower, about 20-30%.
So, if it uses headbutt, will it still cause flinch?
I would assume that it would, since we have no reason to think it wouldn't, and Game Freak didn't say it wouldn't. On a slightly related note, Ice-type Body Slam: no one is safe from the paralysis!
Otherwise, Mega Garchomp is a must have,
I don't know about a
must have, but it will certainly have an effect on the metagame.
Fennekin's final will be psychic while chespin's is rock.
Actually, if the Pokebeach rumors are correct, and they're certainly shaping up to be, Fennekin will be Fire / Psychic, and Chespin will be Grass / Dark.
If we could eight months, than we can certainly wait a little longer, but I get your point.
To sum it all up, I respond with way too much detail to a post a fraction of the size of my response. Edit: Wow, I really should have used hide tags. >.>