This is not a playable creature, this is a whole new race. And this post is somewhat lacking in that regard. You need to go more in-depth about their cultural aspect and such, give people more information as to how they're expected to RP as a memeber of this race.
I personally wouldn't mind a new race to replace the Kha, but there needs to be a more in-depth lore post and of course a number of people willing to start playing as this race, you need a playerbase to begin with.