it's more about time and effort that will be needed for create something less humanlike... outside the fact that add a race that will only be played by something like 1% (it will never happend don't be naive) the fact that make something too much different will ask them to rework the skin for each set of armor that did come out soo far. we are not talking of simple texture like it was for WoW or game like this, but armor with tons of detail and polygon.

they will look nice on humanlike race, but if you create a race too far, it's possible they need to simply recreate a new model from scratch for match the race. more time pass, more it will be difficult for them to add this sort of race without encounter a huge trouble of time/money/energy involved into the process.

we can ask them to be creative, but sadly, let's be honest, they are a company that work for profit... do something that will cost them money and don't earn them profit will not happend. a new race must appeal to a large group of person, not simply 1%.

why did wow did succeed to do it? let's look the race added will you:
- blood elf and draenei, one is an elegant elf and the other is a race of demon like people
- gobelin and worgen, gobelin are small and was demanded by a lot of player and the worgen is a werewolf... tons of player want to play a werewolf.
- panderean.... well only one word to say panda!

but more important the process to adapt armor was easy since most armor are texture with little model change involved.
each race addes was appealing to a mass of player... the trouble here, is if you want a race not too much human, they need to appeal to a mass of player... or it will not happend.


for comeback to the subject, kitsune race (or look a like) can happend with doma country, it will not surprise me actually, but i feel the next extension (themed around the sea) will maybe see a race of amphibian or waterbreathing race, but don't hope for something too far from human.