So I just want to put this out there to start.
Petitions are kinda frowned upon by Blizzard as these forums are for discussion so stuff like–
Kinda go against the spirit of what the forums are for, if you take the petition stuff out though this is honestly a good topic of discussion.
With that out of the way I personally think this topic has merit and could be a great discussion piece on racial emotes. The next big form of player uniqueness/customization is the model options coming in 9.0 but its certainly cool to think about racial emotes. Yeah, everyone can moo, but only Tauren make the unique voice sound.
I think it would be cool to see more options like Howling or maybe some unique native language stuff, maybe even unique gestures of some kind for specific races.
Emotes certainly could use some more love, I know the RP community clamors over the Guard Pose, leaning pose, ect that were added not to long ago for NPC’s. There is certainly a lot of room for new emotes and I think that racial, or at least racially enhanced, emotes could be great 
What would everyone here want to see as an emote for their favorite race? Perhaps a unique phrase, or a pose/action?