The designs and names aren't revealed, but it's practically confirmed that Chespin will be Grass/Dark, Froakie will be Water/Fighting and Fennekin will be Fire/Psychic. Which is great, because that way there's also a reverse type advantage thing going on between them, to make them even more equal to eachother.
it is almost certainly gonna be fighting. because poliwrath and toxicroak are both fighting, + in the trailer we saw it using a fighting attack (mach punch), and fennekin use a psychic attack (confusion or hypnosis, it had circles and was pink XD), and chespin use a dark attack (Night Slash).
like I said on Chespin's pic (well done by the way. same for this one.) referring to the trailer, the moves seen in his little segment could point us in the direction of what typing we will get. the first move is most likely water gun, though through closer inspection, the beam seems to have almost a snowflake pattern. the second looks like quick attack to me but could honestly be anything from normal, fighting, or dark. So we could be looking at a water-ice, or water-fighting type pokemon.
Glad to see more art work of this one!! You did a really great job, and i really like the pose he is in. I think was thinking he may be water/ice. I like them all this gen, but it's pretty obvious Fennekin is getting more attention. Sometimes i hate the internet for being so quick on things XD